257377046 has 4 divisors (see below), whose sum is σ = 386065572. Its totient is φ = 128688522.

The previous prime is 257377039. The next prime is 257377079. The reversal of 257377046 is 640773752.

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

It is a super-2 number, since 2×257377046² = 132485887615372232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257376994 and 257377012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64344260 + ... + 64344263.

It is an arithmetic number, because the mean of its divisors is an integer number (96516393).

Almost surely, 2^257377046 is an apocalyptic number.

257377046 is a deficient number, since it is larger than the sum of its proper divisors (128688526).

257377046 is a wasteful number, since it uses less digits than its factorization.

257377046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128688525.

The product of its (nonzero) digits is 246960, while the sum is 41.

The square root of 257377046 is about 16042.9749734892. The cubic root of 257377046 is about 636.0968877222.

The spelling of 257377046 in words is "two hundred fifty-seven million, three hundred seventy-seven thousand, forty-six".