3972288 has 56 divisors (see below), whose sum is σ = 11137392. Its totient is φ = 1245184.

The previous prime is 3972263. The next prime is 3972301. The reversal of 3972288 is 8822793.

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, 2656 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (198882).

Almost surely, 2^3972288 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 3972288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5568696).

3972288 is an abundant number, since it is smaller than the sum of its proper divisors (7165104).

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

3972288 is a wasteful number, since it uses less digits than its factorization.

3972288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1239 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 3972288 is about 1993.0599589576. The cubic root of 3972288 is about 158.3726715429.

It can be divided in two parts, 39 and 72288, that added together give a palindrome (72327).

The spelling of 3972288 in words is "three million, nine hundred seventy-two thousand, two hundred eighty-eight".