33642472 has 16 divisors (see below), whose sum is σ = 64785060. Its totient is φ = 16366464.

The previous prime is 33642467. The next prime is 33642487. The reversal of 33642472 is 27424633.

It can be written as a sum of positive squares in 2 ways, for example, as 27815076 + 5827396 = 5274^2 + 2414^2 .

It is a super-2 number, since 2×33642472² = 2263631844541568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56533 + ... + 57124.

Almost surely, 2^33642472 is an apocalyptic number.

It is an amenable number.

33642472 is a deficient number, since it is larger than the sum of its proper divisors (31142588).

33642472 is a wasteful number, since it uses less digits than its factorization.

33642472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113700 (or 113696 counting only the distinct ones).

The product of its digits is 24192, while the sum is 31.

The square root of 33642472 is about 5800.2130995335. The cubic root of 33642472 is about 322.8216353329.

The spelling of 33642472 in words is "thirty-three million, six hundred forty-two thousand, four hundred seventy-two".