3731394972 has 48 divisors (see below), whose sum is σ = 9111110400. Its totient is φ = 1186318848.

The previous prime is 3731394943. The next prime is 3731394973. The reversal of 3731394972 is 2794931373.

3731394972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3731394973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78279 + ... + 116577.

It is an arithmetic number, because the mean of its divisors is an integer number (189814800).

Almost surely, 2^3731394972 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 3731394972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4555555200).

3731394972 is an abundant number, since it is smaller than the sum of its proper divisors (5379715428).

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

3731394972 is a wasteful number, since it uses less digits than its factorization.

3731394972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38682 (or 38680 counting only the distinct ones).

The product of its digits is 857304, while the sum is 48.

The square root of 3731394972 is about 61085.1452646222. The cubic root of 3731394972 is about 1551.0426522014.

The spelling of 3731394972 in words is "three billion, seven hundred thirty-one million, three hundred ninety-four thousand, nine hundred seventy-two".