33425228 has 12 divisors (see below), whose sum is σ = 59367672. Its totient is φ = 16463040.

The previous prime is 33425221. The next prime is 33425297. The reversal of 33425228 is 82252433.

It is a super-2 number, since 2×33425228² = 2234491733703968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33425228.

It is not an unprimeable number, because it can be changed into a prime (33425221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62093 + ... + 62628.

It is an arithmetic number, because the mean of its divisors is an integer number (4947306).

Almost surely, 2^33425228 is an apocalyptic number.

It is an amenable number.

33425228 is a deficient number, since it is larger than the sum of its proper divisors (25942444).

33425228 is a wasteful number, since it uses less digits than its factorization.

33425228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124792 (or 124790 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 33425228 is about 5781.4555260765. The cubic root of 33425228 is about 322.1252679279.

The spelling of 33425228 in words is "thirty-three million, four hundred twenty-five thousand, two hundred twenty-eight".