132391620 has 72 divisors (see below), whose sum is σ = 422735040. Its totient is φ = 33445440.

The previous prime is 132391603. The next prime is 132391667. The reversal of 132391620 is 26193231.

132391620 is a `hidden beast` number, since 1 + 3 + 2 + 39 + 1 + 620 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15936 + ... + 22775.

It is an arithmetic number, because the mean of its divisors is an integer number (5871320).

Almost surely, 2^132391620 is an apocalyptic number.

132391620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132391620 is an abundant number, since it is smaller than the sum of its proper divisors (290343420).

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

132391620 is a wasteful number, since it uses less digits than its factorization.

132391620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38745 (or 38740 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 132391620 is about 11506.1557437747. The cubic root of 132391620 is about 509.6673724926.

The spelling of 132391620 in words is "one hundred thirty-two million, three hundred ninety-one thousand, six hundred twenty".