133626828 has 54 divisors (see below), whose sum is σ = 323121148. Its totient is φ = 42980560.

The previous prime is 133626821. The next prime is 133626859. The reversal of 133626828 is 828626331.

It is a super-2 number, since 2×133626828² = 35712258322683168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133626821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1882033 + ... + 1882103.

Almost surely, 2^133626828 is an apocalyptic number.

It is an amenable number.

133626828 is an abundant number, since it is smaller than the sum of its proper divisors (189494320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133626828 is an equidigital number, since it uses as much as digits as its factorization.

133626828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 123 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 133626828 is about 11559.7070897147. The cubic root of 133626828 is about 511.2475264455.

The spelling of 133626828 in words is "one hundred thirty-three million, six hundred twenty-six thousand, eight hundred twenty-eight".