257671062 has 48 divisors (see below), whose sum is σ = 613896192. Its totient is φ = 77459760.

The previous prime is 257671031. The next prime is 257671097. The reversal of 257671062 is 260176752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20023 + ... + 30269.

It is an arithmetic number, because the mean of its divisors is an integer number (12789504).

Almost surely, 2^257671062 is an apocalyptic number.

257671062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 257671062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306948096).

257671062 is an abundant number, since it is smaller than the sum of its proper divisors (356225130).

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

257671062 is a wasteful number, since it uses less digits than its factorization.

257671062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10393 (or 10390 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 257671062 is about 16052.1357457505. The cubic root of 257671062 is about 636.3390117385.

The spelling of 257671062 in words is "two hundred fifty-seven million, six hundred seventy-one thousand, sixty-two".