132431420 has 24 divisors (see below), whose sum is σ = 303388848. Its totient is φ = 48156800.

The previous prime is 132431381. The next prime is 132431423. The reversal of 132431420 is 24134231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 132431392 and 132431401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132431423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300761 + ... + 301200.

It is an arithmetic number, because the mean of its divisors is an integer number (12641202).

Almost surely, 2^132431420 is an apocalyptic number.

132431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132431420 is an abundant number, since it is smaller than the sum of its proper divisors (170957428).

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

132431420 is a wasteful number, since it uses less digits than its factorization.

132431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601981 (or 601979 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 132431420 is about 11507.8851228190. The cubic root of 132431420 is about 509.7184399974.

Adding to 132431420 its reverse (24134231), we get a palindrome (156565651).

The spelling of 132431420 in words is "one hundred thirty-two million, four hundred thirty-one thousand, four hundred twenty".