133440732 has 36 divisors (see below), whose sum is σ = 345539376. Its totient is φ = 43394880.

The previous prime is 133440719. The next prime is 133440763. The reversal of 133440732 is 237044331.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 133440696 and 133440705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43728 + ... + 46679.

It is an arithmetic number, because the mean of its divisors is an integer number (9598316).

Almost surely, 2^133440732 is an apocalyptic number.

133440732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133440732 is an abundant number, since it is smaller than the sum of its proper divisors (212098644).

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

133440732 is a wasteful number, since it uses less digits than its factorization.

133440732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90458 (or 90453 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 133440732 is about 11551.6549463702. The cubic root of 133440732 is about 511.0100858019.

The spelling of 133440732 in words is "one hundred thirty-three million, four hundred forty thousand, seven hundred thirty-two".