139896768 has 56 divisors (see below), whose sum is σ = 403799040. Its totient is φ = 42392320.

The previous prime is 139896739. The next prime is 139896773. The reversal of 139896768 is 867698931.

It is a super-2 number, since 2×139896768² = 39142211393691648, which contains 22 as substring.

It is a congruent 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, 31008 + ... + 35231.

Almost surely, 2^139896768 is an apocalyptic number.

It is an amenable number.

139896768 is an abundant number, since it is smaller than the sum of its proper divisors (263902272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139896768 is a wasteful number, since it uses less digits than its factorization.

139896768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66265 (or 66255 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 139896768 is about 11827.7964135337. The cubic root of 139896768 is about 519.1217522431.

The spelling of 139896768 in words is "one hundred thirty-nine million, eight hundred ninety-six thousand, seven hundred sixty-eight".