33212472 has 16 divisors (see below), whose sum is σ = 83031240. Its totient is φ = 11070816.

The previous prime is 33212471. The next prime is 33212489. The reversal of 33212472 is 27421233.

It is a super-2 number, since 2×33212472² = 2206136592701568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1383853 = 33212472 / (3 + 3 + 2 + 1 + 2 + 4 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33212471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691903 + ... + 691950.

Almost surely, 2^33212472 is an apocalyptic number.

It is an amenable number.

33212472 is an abundant number, since it is smaller than the sum of its proper divisors (49818768).

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

33212472 is a wasteful number, since it uses less digits than its factorization.

33212472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383862 (or 1383858 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 33212472 is about 5763.0262883315. The cubic root of 33212472 is about 321.4403560265.

The spelling of 33212472 in words is "thirty-three million, two hundred twelve thousand, four hundred seventy-two".