3972434140 has 12 divisors (see below), whose sum is σ = 8342111736. Its totient is φ = 1588973648.

The previous prime is 3972434119. The next prime is 3972434153. The reversal of 3972434140 is 414342793.

3972434140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3972434140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99310834 + ... + 99310873.

It is an arithmetic number, because the mean of its divisors is an integer number (695175978).

Almost surely, 2^3972434140 is an apocalyptic number.

It is an amenable number.

3972434140 is an abundant number, since it is smaller than the sum of its proper divisors (4369677596).

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

3972434140 is a wasteful number, since it uses less digits than its factorization.

3972434140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198621716 (or 198621714 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 3972434140 is about 63027.2491863638. The cubic root of 3972434140 is about 1583.7461368959.

The spelling of 3972434140 in words is "three billion, nine hundred seventy-two million, four hundred thirty-four thousand, one hundred forty".