1057641 has 16 divisors (see below), whose sum is σ = 1553664. Its totient is φ = 635904.

The previous prime is 1057633. The next prime is 1057643. The reversal of 1057641 is 1467501.

It is not a de Polignac number, because 1057641 - 2³ = 1057633 is a prime.

It is a super-2 number, since 2×1057641² = 2237208969762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1545 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (97104).

2^1057641 is an apocalyptic number.

It is an amenable number.

1057641 is a deficient number, since it is larger than the sum of its proper divisors (496023).

1057641 is a wasteful number, since it uses less digits than its factorization.

1057641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1057641 is about 1028.4167443211. The cubic root of 1057641 is about 101.8855887472.

The spelling of 1057641 in words is "one million, fifty-seven thousand, six hundred forty-one".