33012072 has 24 divisors (see below), whose sum is σ = 89407890. Its totient is φ = 11004000.

The previous prime is 33012053. The next prime is 33012097. The reversal of 33012072 is 27021033.

It can be written as a sum of positive squares in only one way, i.e., 19660356 + 13351716 = 4434^2 + 3654^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229179 + ... + 229322.

Almost surely, 2^33012072 is an apocalyptic number.

It is an amenable number.

33012072 is an abundant number, since it is smaller than the sum of its proper divisors (56395818).

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

33012072 is a wasteful number, since it uses less digits than its factorization.

33012072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458513 (or 458506 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 33012072 is about 5745.6132831927. The cubic root of 33012072 is about 320.7925407104.

The spelling of 33012072 in words is "thirty-three million, twelve thousand, seventy-two".