1457256 has 16 divisors (see below), whose sum is σ = 3643200. Its totient is φ = 485744.

The previous prime is 1457251. The next prime is 1457273. The reversal of 1457256 is 6527541.

It is not an unprimeable number, because it can be changed into a prime (1457251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30336 + ... + 30383.

It is an arithmetic number, because the mean of its divisors is an integer number (227700).

2^1457256 is an apocalyptic number.

It is an amenable number.

1457256 is an abundant number, since it is smaller than the sum of its proper divisors (2185944).

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

1457256 is a wasteful number, since it uses less digits than its factorization.

1457256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60728 (or 60724 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 1457256 is about 1207.1685880605. The cubic root of 1457256 is about 113.3736035286.

The spelling of 1457256 in words is "one million, four hundred fifty-seven thousand, two hundred fifty-six".