68880132 has 30 divisors (see below), whose sum is σ = 180067118. Its totient is φ = 22959936.

The previous prime is 68880131. The next prime is 68880157. The reversal of 68880132 is 23108886.

It can be written as a sum of positive squares in only one way, i.e., 54997056 + 13883076 = 7416^2 + 3726^2 .

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 (68880131) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 105973 + ... + 106620.

Almost surely, 2^68880132 is an apocalyptic number.

It is an amenable number.

68880132 is an abundant number, since it is smaller than the sum of its proper divisors (111186986).

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

68880132 is a wasteful number, since it uses less digits than its factorization.

68880132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212609 (or 212598 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 68880132 is about 8299.4055208792. The cubic root of 68880132 is about 409.9189449128.

The spelling of 68880132 in words is "sixty-eight million, eight hundred eighty thousand, one hundred thirty-two".