2557304 has 16 divisors (see below), whose sum is σ = 4815720. Its totient is φ = 1273120.

The previous prime is 2557297. The next prime is 2557333. The reversal of 2557304 is 4037552.

It is an Ulam number.

It is a plaindrome in base 15.

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, 1799 + ... + 2889.

2^2557304 is an apocalyptic number.

It is an amenable number.

2557304 is a deficient number, since it is larger than the sum of its proper divisors (2258416).

2557304 is a wasteful number, since it uses less digits than its factorization.

2557304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 2557304 is about 1599.1572780687. The cubic root of 2557304 is about 136.7500370421.

The spelling of 2557304 in words is "two million, five hundred fifty-seven thousand, three hundred four".