33901228 has 24 divisors (see below), whose sum is σ = 61737984. Its totient is φ = 16270800.

The previous prime is 33901201. The next prime is 33901237. The reversal of 33901228 is 82210933.

It is a super-2 number, since 2×33901228² = 2298586519815968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 33901196 and 33901205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15201 + ... + 17287.

It is an arithmetic number, because the mean of its divisors is an integer number (2572416).

Almost surely, 2^33901228 is an apocalyptic number.

It is an amenable number.

33901228 is a deficient number, since it is larger than the sum of its proper divisors (27836756).

33901228 is a wasteful number, since it uses less digits than its factorization.

33901228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253 (or 2251 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 33901228 is about 5822.4761055757. The cubic root of 33901228 is about 323.6471670941.

The spelling of 33901228 in words is "thirty-three million, nine hundred one thousand, two hundred twenty-eight".