1013920 has 24 divisors (see below), whose sum is σ = 2395764. Its totient is φ = 405504.

The previous prime is 1013899. The next prime is 1013921. The reversal of 1013920 is 293101.

1013920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 992016 + 21904 = 996^2 + 148^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1013894 and 1013903.

It is not an unprimeable number, because it can be changed into a prime (1013921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3009 + ... + 3328.

2^1013920 is an apocalyptic number.

1013920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1013920 is an abundant number, since it is smaller than the sum of its proper divisors (1381844).

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

1013920 is an equidigital number, since it uses as much as digits as its factorization.

1013920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1013920 is about 1006.9359463243. The cubic root of 1013920 is about 100.4618635366.

The spelling of 1013920 in words is "one million, thirteen thousand, nine hundred twenty".