257060738 has 8 divisors (see below), whose sum is σ = 420644880. Its totient is φ = 116845780.

The previous prime is 257060737. The next prime is 257060789. The reversal of 257060738 is 837060752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×257060738² = 132160446042209288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257060731) 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, 5842268 + ... + 5842311.

It is an arithmetic number, because the mean of its divisors is an integer number (52580610).

Almost surely, 2^257060738 is an apocalyptic number.

257060738 is a deficient number, since it is larger than the sum of its proper divisors (163584142).

257060738 is a wasteful number, since it uses less digits than its factorization.

257060738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11684592.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 257060738 is about 16033.1137961408. The cubic root of 257060738 is about 635.8362001206.

The spelling of 257060738 in words is "two hundred fifty-seven million, sixty thousand, seven hundred thirty-eight".