1056642 has 16 divisors (see below), whose sum is σ = 2148672. Its totient is φ = 346320.

The previous prime is 1056641. The next prime is 1056659. The reversal of 1056642 is 2466501.

It is a super-2 number, since 2×1056642² = 2232984632328, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 0 + 5³ + 6² + 6⁵ + 4¹⁰ + 2⁷ .

It is not an unprimeable number, because it can be changed into a prime (1056641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (134292).

2^1056642 is an apocalyptic number.

1056642 is an abundant number, since it is smaller than the sum of its proper divisors (1092030).

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

1056642 is a wasteful number, since it uses less digits than its factorization.

1056642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1056642 is about 1027.9309315319. The cubic root of 1056642 is about 101.8534997974.

The spelling of 1056642 in words is "one million, fifty-six thousand, six hundred forty-two".