33144372 has 18 divisors (see below), whose sum is σ = 83781698. Its totient is φ = 11048112.

The previous prime is 33144367. The next prime is 33144413. The reversal of 33144372 is 27344133.

It can be written as a sum of positive squares in only one way, i.e., 18352656 + 14791716 = 4284^2 + 3846^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 460303 + ... + 460374.

Almost surely, 2^33144372 is an apocalyptic number.

It is an amenable number.

33144372 is an abundant number, since it is smaller than the sum of its proper divisors (50637326).

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

33144372 is a wasteful number, since it uses less digits than its factorization.

33144372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920687 (or 920682 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 33144372 is about 5757.1149024490. The cubic root of 33144372 is about 321.2205082264.

The spelling of 33144372 in words is "thirty-three million, one hundred forty-four thousand, three hundred seventy-two".