139428588 has 48 divisors (see below), whose sum is σ = 351192800. Its totient is φ = 42799104.

The previous prime is 139428571. The next prime is 139428643. The reversal of 139428588 is 885824931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89238 + ... + 90786.

Almost surely, 2^139428588 is an apocalyptic number.

It is an amenable number.

139428588 is an abundant number, since it is smaller than the sum of its proper divisors (211764212).

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

139428588 is a wasteful number, since it uses less digits than its factorization.

139428588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146 (or 2144 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 139428588 is about 11807.9883130023. The cubic root of 139428588 is about 518.5420055879.

The spelling of 139428588 in words is "one hundred thirty-nine million, four hundred twenty-eight thousand, five hundred eighty-eight".