939643968 has 56 divisors (see below), whose sum is σ = 2494775808. Its totient is φ = 312126976.

The previous prime is 939643951. The next prime is 939643973. The reversal of 939643968 is 869346939.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47905 + ... + 64607.

It is an arithmetic number, because the mean of its divisors is an integer number (44549568).

Almost surely, 2^939643968 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 939643968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247387904).

939643968 is an abundant number, since it is smaller than the sum of its proper divisors (1555131840).

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

939643968 is a wasteful number, since it uses less digits than its factorization.

939643968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17011 (or 17001 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 57.

The square root of 939643968 is about 30653.6126419057. The cubic root of 939643968 is about 979.4624179202.

The spelling of 939643968 in words is "nine hundred thirty-nine million, six hundred forty-three thousand, nine hundred sixty-eight".