39939273024 has 112 divisors (see below), whose sum is σ = 120821500800. Its totient is φ = 11406237696.

The previous prime is 39939272999. The next prime is 39939273043. The reversal of 39939273024 is 42037293993.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×39939273024² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3985332 + ... + 3995340.

It is an arithmetic number, because the mean of its divisors is an integer number (1078763400).

Almost surely, 2^39939273024 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 39939273024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60410750400).

39939273024 is an abundant number, since it is smaller than the sum of its proper divisors (80882227776).

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

39939273024 is a wasteful number, since it uses less digits than its factorization.

39939273024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000 (or 12990 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 51.

The spelling of 39939273024 in words is "thirty-nine billion, nine hundred thirty-nine million, two hundred seventy-three thousand, twenty-four".