257613994 has 16 divisors (see below), whose sum is σ = 421892640. Its totient is φ = 117002160.

The previous prime is 257613977. The next prime is 257614013. The reversal of 257613994 is 499316752.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27937 + ... + 35995.

It is an arithmetic number, because the mean of its divisors is an integer number (26368290).

Almost surely, 2^257613994 is an apocalyptic number.

257613994 is a deficient number, since it is larger than the sum of its proper divisors (164278646).

257613994 is a wasteful number, since it uses less digits than its factorization.

257613994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9525.

The product of its digits is 408240, while the sum is 46.

The square root of 257613994 is about 16050.3580645417. The cubic root of 257613994 is about 636.2920302942.

The spelling of 257613994 in words is "two hundred fifty-seven million, six hundred thirteen thousand, nine hundred ninety-four".