2542857 has 16 divisors (see below), whose sum is σ = 3576960. Its totient is φ = 1603712.

The previous prime is 2542853. The next prime is 2542879. The reversal of 2542857 is 7582452.

It is a cyclic number.

It is not a de Polignac number, because 2542857 - 2² = 2542853 is a prime.

It is a super-2 number, since 2×2542857² = 12932243444898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2542853) 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, 9319 + ... + 9587.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^2542857 is an apocalyptic number.

It is an amenable number.

2542857 is a deficient number, since it is larger than the sum of its proper divisors (1034103).

2542857 is a wasteful number, since it uses less digits than its factorization.

2542857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its digits is 22400, while the sum is 33.

The square root of 2542857 is about 1594.6338137642. The cubic root of 2542857 is about 136.4920361922.

The spelling of 2542857 in words is "two million, five hundred forty-two thousand, eight hundred fifty-seven".