1055840 has 24 divisors (see below), whose sum is σ = 2494800. Its totient is φ = 422272.

The previous prime is 1055839. The next prime is 1055851. The reversal of 1055840 is 485501.

It is a super-2 number, since 2×1055840² = 2229596211200, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140 + ... + 3459.

It is an arithmetic number, because the mean of its divisors is an integer number (103950).

2^1055840 is an apocalyptic number.

1055840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055840 is an abundant number, since it is smaller than the sum of its proper divisors (1438960).

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

1055840 is an equidigital number, since it uses as much as digits as its factorization.

1055840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6614 (or 6606 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1055840 is about 1027.5407534497. The cubic root of 1055840 is about 101.8277240593.

The spelling of 1055840 in words is "one million, fifty-five thousand, eight hundred forty".