257707342 has 16 divisors (see below), whose sum is σ = 396063360. Its totient is φ = 125694072.

The previous prime is 257707337. The next prime is 257707343. The reversal of 257707342 is 243707752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257707343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90009 + ... + 92827.

It is an arithmetic number, because the mean of its divisors is an integer number (24753960).

Almost surely, 2^257707342 is an apocalyptic number.

257707342 is a deficient number, since it is larger than the sum of its proper divisors (138356018).

257707342 is a wasteful number, since it uses less digits than its factorization.

257707342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 257707342 is about 16053.2657736674. The cubic root of 257707342 is about 636.3688757775.

The spelling of 257707342 in words is "two hundred fifty-seven million, seven hundred seven thousand, three hundred forty-two".