3972849372 has 18 divisors (see below), whose sum is σ = 10042480448. Its totient is φ = 1324283112.

The previous prime is 3972849347. The next prime is 3972849379. The reversal of 3972849372 is 2739482793.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972849379) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55178428 + ... + 55178499.

Almost surely, 2^3972849372 is an apocalyptic number.

It is an amenable number.

3972849372 is an abundant number, since it is smaller than the sum of its proper divisors (6069631076).

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

3972849372 is a wasteful number, since it uses less digits than its factorization.

3972849372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110356937 (or 110356932 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 3972849372 is about 63030.5431675787. The cubic root of 3972849372 is about 1583.8013170987.

The spelling of 3972849372 in words is "three billion, nine hundred seventy-two million, eight hundred forty-nine thousand, three hundred seventy-two".