1056840 has 32 divisors (see below), whose sum is σ = 3170880. Its totient is φ = 281792.

The previous prime is 1056833. The next prime is 1056863. The reversal of 1056840 is 486501.

It is a super-2 number, since 2×1056840² = 2233821571200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 1056840.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4284 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (99090).

2^1056840 is an apocalyptic number.

1056840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056840 is an abundant number, since it is smaller than the sum of its proper divisors (2114040).

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

1056840 is a wasteful number, since it uses less digits than its factorization.

1056840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821 (or 8817 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1056840 is about 1028.0272369933. The cubic root of 1056840 is about 101.8598613760.

The spelling of 1056840 in words is "one million, fifty-six thousand, eight hundred forty".