1051920 has 80 divisors (see below), whose sum is σ = 3630720. Its totient is φ = 279936.

The previous prime is 1051913. The next prime is 1051927. The reversal of 1051920 is 291501.

It is an interprime number because it is at equal distance from previous prime (1051913) and next prime (1051927).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1051920² = 2213071372800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1051893 and 1051902.

It is not an unprimeable number, because it can be changed into a prime (1051927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917 + ... + 2403.

It is an arithmetic number, because the mean of its divisors is an integer number (45384).

2^1051920 is an apocalyptic number.

1051920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1051920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1815360).

1051920 is an abundant number, since it is smaller than the sum of its proper divisors (2578800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051920 is a wasteful number, since it uses less digits than its factorization.

1051920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1051920 is about 1025.6315127764. The cubic root of 1051920 is about 101.7015497367.

It can be divided in two parts, 105 and 1920, that added together give a square (2025 = 45²).

The spelling of 1051920 in words is "one million, fifty-one thousand, nine hundred twenty".