132431628 has 48 divisors (see below), whose sum is σ = 364550144. Its totient is φ = 36616320.

The previous prime is 132431627. The next prime is 132431639. The reversal of 132431628 is 826134231.

It is a junction number, because it is equal to n+sod(n) for n = 132431595 and 132431604.

It is not an unprimeable number, because it can be changed into a prime (132431627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22825 + ... + 28032.

Almost surely, 2^132431628 is an apocalyptic number.

It is an amenable number.

132431628 is an abundant number, since it is smaller than the sum of its proper divisors (232118516).

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

132431628 is a wasteful number, since it uses less digits than its factorization.

132431628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50902 (or 50900 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 132431628 is about 11507.8941600972. The cubic root of 132431628 is about 509.7187068560.

Adding to 132431628 its reverse (826134231), we get a palindrome (958565859).

The spelling of 132431628 in words is "one hundred thirty-two million, four hundred thirty-one thousand, six hundred twenty-eight".