3972942028 has 24 divisors (see below), whose sum is σ = 7983904320. Its totient is φ = 1710835920.

The previous prime is 3972942013. The next prime is 3972942031. The reversal of 3972942028 is 8202492793.

3972942028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375326 + ... + 2376997.

It is an arithmetic number, because the mean of its divisors is an integer number (332662680).

Almost surely, 2^3972942028 is an apocalyptic number.

3972942028 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3972942028 is an abundant number, since it is smaller than the sum of its proper divisors (4010962292).

3972942028 is a wasteful number, since it uses less digits than its factorization.

3972942028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752357 (or 4752355 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 3972942028 is about 63031.2781720314. The cubic root of 3972942028 is about 1583.8136296348.

It can be divided in two parts, 3972 and 942028, that added together give a triangular number (946000 = T₁₃₇₅).

The spelling of 3972942028 in words is "three billion, nine hundred seventy-two million, nine hundred forty-two thousand, twenty-eight".