257741260 has 48 divisors (see below), whose sum is σ = 635310144. Its totient is φ = 85978368.

The previous prime is 257741249. The next prime is 257741273. The reversal of 257741260 is 62147752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19699 + ... + 30058.

It is an arithmetic number, because the mean of its divisors is an integer number (13235628).

Almost surely, 2^257741260 is an apocalyptic number.

257741260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257741260 is an abundant number, since it is smaller than the sum of its proper divisors (377568884).

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

257741260 is a wasteful number, since it uses less digits than its factorization.

257741260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49810 (or 49808 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 257741260 is about 16054.3221594685. The cubic root of 257741260 is about 636.3967929910.

The spelling of 257741260 in words is "two hundred fifty-seven million, seven hundred forty-one thousand, two hundred sixty".