133808832 has 42 divisors (see below), whose sum is σ = 383540508. Its totient is φ = 44602752.

The previous prime is 133808821. The next prime is 133808833. The reversal of 133808832 is 238808331.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (133808833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115578 + ... + 116729.

Almost surely, 2^133808832 is an apocalyptic number.

133808832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133808832 is an abundant number, since it is smaller than the sum of its proper divisors (249731676).

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

133808832 is a wasteful number, since it uses less digits than its factorization.

133808832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232325 (or 232312 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 133808832 is about 11567.5767557428. The cubic root of 133808832 is about 511.4795329541.

The spelling of 133808832 in words is "one hundred thirty-three million, eight hundred eight thousand, eight hundred thirty-two".