338253957 has 12 divisors (see below), whose sum is σ = 493333984. Its totient is φ = 223312680.

The previous prime is 338253917. The next prime is 338253961. The reversal of 338253957 is 759352833.

338253957 is a `hidden beast` number, since 33 + 82 + 539 + 5 + 7 = 666.

It is not a de Polignac number, because 338253957 - 2⁷ = 338253829 is a prime.

It is a super-2 number, since 2×338253957² = 228831478852315698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338253907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181519 + ... + 183372.

Almost surely, 2^338253957 is an apocalyptic number.

It is an amenable number.

338253957 is a deficient number, since it is larger than the sum of its proper divisors (155080027).

338253957 is a wasteful number, since it uses less digits than its factorization.

338253957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365000 (or 364997 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 338253957 is about 18391.6817338709. The cubic root of 338253957 is about 696.7563925500.

The spelling of 338253957 in words is "three hundred thirty-eight million, two hundred fifty-three thousand, nine hundred fifty-seven".