33372428 has 12 divisors (see below), whose sum is σ = 61837272. Its totient is φ = 15704640.

The previous prime is 33372389. The next prime is 33372431. The reversal of 33372428 is 82427333.

It is a super-2 number, since 2×33372428² = 2227437901230368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33372394 and 33372403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245318 + ... + 245453.

It is an arithmetic number, because the mean of its divisors is an integer number (5153106).

Almost surely, 2^33372428 is an apocalyptic number.

It is an amenable number.

33372428 is a deficient number, since it is larger than the sum of its proper divisors (28464844).

33372428 is a wasteful number, since it uses less digits than its factorization.

33372428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490792 (or 490790 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 33372428 is about 5776.8873972062. The cubic root of 33372428 is about 321.9555639979.

The spelling of 33372428 in words is "thirty-three million, three hundred seventy-two thousand, four hundred twenty-eight".