257708452 has 12 divisors (see below), whose sum is σ = 461989836. Its totient is φ = 125711360.

The previous prime is 257708431. The next prime is 257708453. The reversal of 257708452 is 254807752.

It is a happy number.

257708452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 131010916 + 126697536 = 11446^2 + 11256^2 .

It is not an unprimeable number, because it can be changed into a prime (257708453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785533 + ... + 785860.

It is an arithmetic number, because the mean of its divisors is an integer number (38499153).

Almost surely, 2^257708452 is an apocalyptic number.

It is an amenable number.

257708452 is a deficient number, since it is larger than the sum of its proper divisors (204281384).

257708452 is a wasteful number, since it uses less digits than its factorization.

257708452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571438 (or 1571436 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 257708452 is about 16053.3003460348. The cubic root of 257708452 is about 636.3697894346.

The spelling of 257708452 in words is "two hundred fifty-seven million, seven hundred eight thousand, four hundred fifty-two".