33312472 has 32 divisors (see below), whose sum is σ = 67161600. Its totient is φ = 15440544.

The previous prime is 33312457. The next prime is 33312479. The reversal of 33312472 is 27421333.

It is a super-2 number, since 2×33312472² = 2219441581501568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33312479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4813 + ... + 9475.

It is an arithmetic number, because the mean of its divisors is an integer number (2098800).

Almost surely, 2^33312472 is an apocalyptic number.

It is an amenable number.

33312472 is an abundant number, since it is smaller than the sum of its proper divisors (33849128).

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

33312472 is a wasteful number, since it uses less digits than its factorization.

33312472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735 (or 4731 counting only the distinct ones).

The product of its digits is 3024, while the sum is 25.

The square root of 33312472 is about 5771.6957646778. The cubic root of 33312472 is about 321.7626428715.

The spelling of 33312472 in words is "thirty-three million, three hundred twelve thousand, four hundred seventy-two".