139976328 has 64 divisors (see below), whose sum is σ = 361316160. Its totient is φ = 45156096.

The previous prime is 139976311. The next prime is 139976341. The reversal of 139976328 is 823679931.

139976328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 251026 + ... + 251582.

It is an arithmetic number, because the mean of its divisors is an integer number (5645565).

Almost surely, 2^139976328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139976328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180658080).

139976328 is an abundant number, since it is smaller than the sum of its proper divisors (221339832).

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

139976328 is a wasteful number, since it uses less digits than its factorization.

139976328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 882 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 139976328 is about 11831.1591993346. The cubic root of 139976328 is about 519.2201426497.

The spelling of 139976328 in words is "one hundred thirty-nine million, nine hundred seventy-six thousand, three hundred twenty-eight".