33440472 has 64 divisors (see below), whose sum is σ = 100044000. Its totient is φ = 10288512.

The previous prime is 33440447. The next prime is 33440483. The reversal of 33440472 is 27404433.

It is a super-2 number, since 2×33440472² = 2236530335165568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3147 + ... + 8762.

Almost surely, 2^33440472 is an apocalyptic number.

It is an amenable number.

33440472 is an abundant number, since it is smaller than the sum of its proper divisors (66603528).

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

33440472 is a wasteful number, since it uses less digits than its factorization.

33440472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11937 (or 11927 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 33440472 is about 5782.7737289297. The cubic root of 33440472 is about 322.1742302594.

The spelling of 33440472 in words is "thirty-three million, four hundred forty thousand, four hundred seventy-two".