3218372 has 48 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 1377792.

The previous prime is 3218357. The next prime is 3218399. The reversal of 3218372 is 2738123.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60698 + ... + 60750.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

Almost surely, 2^3218372 is an apocalyptic number.

It is an amenable number.

3218372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

3218372 is a wasteful number, since it uses less digits than its factorization.

3218372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 138 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 3218372 is about 1793.9821626761. The cubic root of 3218372 is about 147.6427345701.

Subtracting from 3218372 its reverse (2738123), we obtain a square (480249 = 693²).

The spelling of 3218372 in words is "three million, two hundred eighteen thousand, three hundred seventy-two".