33872472 has 32 divisors (see below), whose sum is σ = 94090800. Its totient is φ = 11290752.

The previous prime is 33872441. The next prime is 33872473. The reversal of 33872472 is 27427833.

It is a super-2 number, since 2×33872472² = 2294688718781568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33872473) 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, 78193 + ... + 78624.

Almost surely, 2^33872472 is an apocalyptic number.

It is an amenable number.

33872472 is an abundant number, since it is smaller than the sum of its proper divisors (60218328).

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

33872472 is a wasteful number, since it uses less digits than its factorization.

33872472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156832 (or 156822 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 33872472 is about 5820.0061855637. The cubic root of 33872472 is about 323.5556322525. Note that the first 3 decimals are identical.

The spelling of 33872472 in words is "thirty-three million, eight hundred seventy-two thousand, four hundred seventy-two".