1051856 has 30 divisors (see below), whose sum is σ = 2212470. Its totient is φ = 484224.

The previous prime is 1051849. The next prime is 1051879. The reversal of 1051856 is 6581501.

It can be written as a sum of positive squares in 3 ways, for example, as 19600 + 1032256 = 140^2 + 1016^2 .

It is a super-2 number, since 2×1051856² = 2212802089472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2510 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (73749).

2^1051856 is an apocalyptic number.

1051856 is a gapful number since it is divisible by the number (16) 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 1051856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106235).

1051856 is an abundant number, since it is smaller than the sum of its proper divisors (1160614).

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

1051856 is a wasteful number, since it uses less digits than its factorization.

1051856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1051856 is about 1025.6003120124. The cubic root of 1051856 is about 101.6994871491.

The spelling of 1051856 in words is "one million, fifty-one thousand, eight hundred fifty-six".