20312332 has 6 divisors (see below), whose sum is σ = 35546588. Its totient is φ = 10156164.

The previous prime is 20312309. The next prime is 20312351. The reversal of 20312332 is 23321302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539038 + ... + 2539045.

Almost surely, 2^20312332 is an apocalyptic number.

It is an amenable number.

20312332 is a deficient number, since it is larger than the sum of its proper divisors (15234256).

20312332 is a wasteful number, since it uses less digits than its factorization.

20312332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078087 (or 5078085 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20312332 is about 4506.9204563649. The cubic root of 20312332 is about 272.8474685416.

Adding to 20312332 its reverse (23321302), we get a palindrome (43633634).

The spelling of 20312332 in words is "twenty million, three hundred twelve thousand, three hundred thirty-two".