257703042 has 32 divisors (see below), whose sum is σ = 555160320. Its totient is φ = 79485840.

The previous prime is 257703041. The next prime is 257703053. The reversal of 257703042 is 240307752.

257703042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (257703041) 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, 21384 + ... + 31187.

It is an arithmetic number, because the mean of its divisors is an integer number (17348760).

Almost surely, 2^257703042 is an apocalyptic number.

257703042 is an abundant number, since it is smaller than the sum of its proper divisors (297457278).

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

257703042 is a wasteful number, since it uses less digits than its factorization.

257703042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52638.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 257703042 is about 16053.1318439736. The cubic root of 257703042 is about 636.3653363603.

The spelling of 257703042 in words is "two hundred fifty-seven million, seven hundred three thousand, forty-two".