232132404 has 72 divisors (see below), whose sum is σ = 644796768. Its totient is φ = 64774080.

The previous prime is 232132403. The next prime is 232132409. The reversal of 232132404 is 404231232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232132403) 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, 20694 + ... + 29874.

Almost surely, 2^232132404 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 232132404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322398384).

232132404 is an abundant number, since it is smaller than the sum of its proper divisors (412664364).

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

232132404 is a wasteful number, since it uses less digits than its factorization.

232132404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245 (or 9236 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 232132404 is about 15235.8919660124. The cubic root of 232132404 is about 614.5802357338.

Adding to 232132404 its reverse (404231232), we get a palindrome (636363636).

The spelling of 232132404 in words is "two hundred thirty-two million, one hundred thirty-two thousand, four hundred four".