139329228 has 24 divisors (see below), whose sum is σ = 325464832. Its totient is φ = 46391184.

The previous prime is 139329227. The next prime is 139329241. The reversal of 139329228 is 822923931.

139329228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (139329227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5601 + ... + 17607.

Almost surely, 2^139329228 is an apocalyptic number.

It is an amenable number.

139329228 is an abundant number, since it is smaller than the sum of its proper divisors (186135604).

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

139329228 is a wasteful number, since it uses less digits than its factorization.

139329228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981 (or 12979 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 139329228 is about 11803.7802419394. The cubic root of 139329228 is about 518.4188013538.

The spelling of 139329228 in words is "one hundred thirty-nine million, three hundred twenty-nine thousand, two hundred twenty-eight".