939427638 has 16 divisors (see below), whose sum is σ = 1879851456. Its totient is φ = 312976520.

The previous prime is 939427613. The next prime is 939427639. The reversal of 939427638 is 836724939.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939427639) 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, 28956 + ... + 52127.

It is an arithmetic number, because the mean of its divisors is an integer number (117490716).

Almost surely, 2^939427638 is an apocalyptic number.

939427638 is an abundant number, since it is smaller than the sum of its proper divisors (940423818).

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

939427638 is a wasteful number, since it uses less digits than its factorization.

939427638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83019.

The product of its digits is 1959552, while the sum is 51.

The square root of 939427638 is about 30650.0838171774. The cubic root of 939427638 is about 979.3872464102.

The spelling of 939427638 in words is "nine hundred thirty-nine million, four hundred twenty-seven thousand, six hundred thirty-eight".