257020876 has 48 divisors (see below), whose sum is σ = 541542400. Its totient is φ = 106580880.

The previous prime is 257020867. The next prime is 257020879. The reversal of 257020876 is 678020752.

It is not an unprimeable number, because it can be changed into a prime (257020879) 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, 39511 + ... + 45553.

Almost surely, 2^257020876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257020876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270771200).

257020876 is an abundant number, since it is smaller than the sum of its proper divisors (284521524).

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

257020876 is a wasteful number, since it uses less digits than its factorization.

257020876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099 (or 6083 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 257020876 is about 16031.8706332106. The cubic root of 257020876 is about 635.8033323854.

The spelling of 257020876 in words is "two hundred fifty-seven million, twenty thousand, eight hundred seventy-six".