33572428 has 6 divisors (see below), whose sum is σ = 58751756. Its totient is φ = 16786212.

The previous prime is 33572417. The next prime is 33572447. The reversal of 33572428 is 82427533.

It is a super-2 number, since 2×33572428² = 2254215843630368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33572393 and 33572402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4196550 + ... + 4196557.

Almost surely, 2^33572428 is an apocalyptic number.

It is an amenable number.

33572428 is a deficient number, since it is larger than the sum of its proper divisors (25179328).

33572428 is a wasteful number, since it uses less digits than its factorization.

33572428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8393111 (or 8393109 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 33572428 is about 5794.1718994176. The cubic root of 33572428 is about 322.5974402597.

The spelling of 33572428 in words is "thirty-three million, five hundred seventy-two thousand, four hundred twenty-eight".