1056858 has 32 divisors (see below), whose sum is σ = 2350080. Its totient is φ = 314160.

The previous prime is 1056833. The next prime is 1056863. The reversal of 1056858 is 8586501.

It is a super-2 number, since 2×1056858² = 2233897664328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4303 + ... + 4541.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2^1056858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175040).

1056858 is an abundant number, since it is smaller than the sum of its proper divisors (1293222).

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

1056858 is a wasteful number, since it uses less digits than its factorization.

1056858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1056858 is about 1028.0359915878. The cubic root of 1056858 is about 101.8604396620.

The spelling of 1056858 in words is "one million, fifty-six thousand, eight hundred fifty-eight".