33628233 has 12 divisors (see below), whose sum is σ = 47323248. Its totient is φ = 21238200.

The previous prime is 33628229. The next prime is 33628237. The reversal of 33628233 is 33282633.

It is an interprime number because it is at equal distance from previous prime (33628229) and next prime (33628237).

It is not a de Polignac number, because 33628233 - 2² = 33628229 is a prime.

It is a super-2 number, since 2×33628233² = 2261716109404578, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 33628233.

It is not an unprimeable number, because it can be changed into a prime (33628237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14443 + ... + 16608.

It is an arithmetic number, because the mean of its divisors is an integer number (3943604).

Almost surely, 2^33628233 is an apocalyptic number.

It is an amenable number.

33628233 is a deficient number, since it is larger than the sum of its proper divisors (13695015).

33628233 is a wasteful number, since it uses less digits than its factorization.

33628233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31092 (or 31073 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 33628233 is about 5798.9855147258. The cubic root of 33628233 is about 322.7760847174.

The spelling of 33628233 in words is "thirty-three million, six hundred twenty-eight thousand, two hundred thirty-three".