139430704 has 80 divisors (see below), whose sum is σ = 319479552. Its totient is φ = 57717504.

The previous prime is 139430677. The next prime is 139430749. The reversal of 139430704 is 407034931.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492547 + ... + 492829.

Almost surely, 2^139430704 is an apocalyptic number.

139430704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139430704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159739776).

139430704 is an abundant number, since it is smaller than the sum of its proper divisors (180048848).

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

139430704 is a wasteful number, since it uses less digits than its factorization.

139430704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 139430704 is about 11808.0779130221. The cubic root of 139430704 is about 518.5446287452.

The spelling of 139430704 in words is "one hundred thirty-nine million, four hundred thirty thousand, seven hundred four".