2231972 has 12 divisors (see below), whose sum is σ = 3916416. Its totient is φ = 1113000.

The previous prime is 2231941. The next prime is 2232017. The reversal of 2231972 is 2791322.

2231972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2231972³ = 33357038100100926144, which contains 333 as substring.

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, 2597 + ... + 3347.

It is an arithmetic number, because the mean of its divisors is an integer number (326368).

2^2231972 is an apocalyptic number.

It is an amenable number.

2231972 is a deficient number, since it is larger than the sum of its proper divisors (1684444).

2231972 is a wasteful number, since it uses less digits than its factorization.

2231972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1496 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 2231972 is about 1493.9785808371. The cubic root of 2231972 is about 130.6861550598.

The spelling of 2231972 in words is "two million, two hundred thirty-one thousand, nine hundred seventy-two".