3921032736 has 72 divisors (see below), whose sum is σ = 11737318320. Its totient is φ = 1238219136.

The previous prime is 3921032729. The next prime is 3921032741. The reversal of 3921032736 is 6372301293.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3921032736.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352810 + ... + 363753.

It is an arithmetic number, because the mean of its divisors is an integer number (163018310).

Almost surely, 2^3921032736 is an apocalyptic number.

3921032736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3921032736 is an abundant number, since it is smaller than the sum of its proper divisors (7816285584).

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

3921032736 is a wasteful number, since it uses less digits than its factorization.

3921032736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716598 (or 716587 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 3921032736 is about 62618.1502122188. The cubic root of 3921032736 is about 1576.8854867405.

The spelling of 3921032736 in words is "three billion, nine hundred twenty-one million, thirty-two thousand, seven hundred thirty-six".