139474880 has 28 divisors (see below), whose sum is σ = 332125320. Its totient is φ = 55789824.

The previous prime is 139474873. The next prime is 139474931. The reversal of 139474880 is 88474931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217610 + ... + 218249.

Almost surely, 2^139474880 is an apocalyptic number.

139474880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139474880 is an abundant number, since it is smaller than the sum of its proper divisors (192650440).

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

139474880 is an equidigital number, since it uses as much as digits as its factorization.

139474880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435876 (or 435866 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 139474880 is about 11809.9483487440. The cubic root of 139474880 is about 518.5993866716.

The spelling of 139474880 in words is "one hundred thirty-nine million, four hundred seventy-four thousand, eight hundred eighty".