939509944 has 8 divisors (see below), whose sum is σ = 1761581160. Its totient is φ = 469754968.

The previous prime is 939509941. The next prime is 939509993. The reversal of 939509944 is 449905939.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 939509891 and 939509900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939509941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58719364 + ... + 58719379.

It is an arithmetic number, because the mean of its divisors is an integer number (220197645).

Almost surely, 2^939509944 is an apocalyptic number.

It is an amenable number.

939509944 is a deficient number, since it is larger than the sum of its proper divisors (822071216).

939509944 is a wasteful number, since it uses less digits than its factorization.

939509944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117438749 (or 117438745 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 939509944 is about 30651.4264594651. The cubic root of 939509944 is about 979.4158479010.

The spelling of 939509944 in words is "nine hundred thirty-nine million, five hundred nine thousand, nine hundred forty-four".