132704388 has 72 divisors (see below), whose sum is σ = 351868608. Its totient is φ = 42090048.

The previous prime is 132704381. The next prime is 132704389. The reversal of 132704388 is 883407231.

132704388 is a `hidden beast` number, since 1 + 3 + 270 + 4 + 388 = 666.

It is a super-2 number, since 2×132704388² = 35220909188909088, which contains 22 as substring.

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 (132704381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242331 + ... + 242877.

It is an arithmetic number, because the mean of its divisors is an integer number (4887064).

Almost surely, 2^132704388 is an apocalyptic number.

132704388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 132704388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175934304).

132704388 is an abundant number, since it is smaller than the sum of its proper divisors (219164220).

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

132704388 is a wasteful number, since it uses less digits than its factorization.

132704388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 132704388 is about 11519.7390595447. The cubic root of 132704388 is about 510.0684106616.

The spelling of 132704388 in words is "one hundred thirty-two million, seven hundred four thousand, three hundred eighty-eight".