257300426 has 4 divisors (see below), whose sum is σ = 385950642. Its totient is φ = 128650212.

The previous prime is 257300401. The next prime is 257300431. The reversal of 257300426 is 624003752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 166384201 + 90916225 = 12899^2 + 9535^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64325105 + ... + 64325108.

Almost surely, 2^257300426 is an apocalyptic number.

257300426 is a deficient number, since it is larger than the sum of its proper divisors (128650216).

257300426 is a wasteful number, since it uses less digits than its factorization.

257300426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128650215.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 257300426 is about 16040.5868346517. The cubic root of 257300426 is about 636.0337603877.

The spelling of 257300426 in words is "two hundred fifty-seven million, three hundred thousand, four hundred twenty-six".