3972928284 has 96 divisors (see below), whose sum is σ = 11145908480. Its totient is φ = 1216555200.

The previous prime is 3972928277. The next prime is 3972928313. The reversal of 3972928284 is 4828292793.

It is a happy number.

3972928284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 3972928284.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289539 + ... + 302949.

Almost surely, 2^3972928284 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 3972928284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5572954240).

3972928284 is an abundant number, since it is smaller than the sum of its proper divisors (7172980196).

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

3972928284 is a wasteful number, since it uses less digits than its factorization.

3972928284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13648 (or 13640 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 3972928284 is about 63031.1691467007. The cubic root of 3972928284 is about 1583.8118032838.

The spelling of 3972928284 in words is "three billion, nine hundred seventy-two million, nine hundred twenty-eight thousand, two hundred eighty-four".