132421432 has 96 divisors (see below), whose sum is σ = 311698800. Its totient is φ = 52208640.

The previous prime is 132421427. The next prime is 132421433. The reversal of 132421432 is 234124231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132421433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213619 + ... + 214237.

Almost surely, 2^132421432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 132421432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155849400).

132421432 is an abundant number, since it is smaller than the sum of its proper divisors (179277368).

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

132421432 is a wasteful number, since it uses less digits than its factorization.

132421432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 662 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 132421432 is about 11507.4511513193. The cubic root of 132421432 is about 509.7056253251.

Adding to 132421432 its reverse (234124231), we get a palindrome (366545663).

The spelling of 132421432 in words is "one hundred thirty-two million, four hundred twenty-one thousand, four hundred thirty-two".