404240232 has 64 divisors (see below), whose sum is σ = 1125964800. Its totient is φ = 119887040.

The previous prime is 404240209. The next prime is 404240261. The reversal of 404240232 is 232042404.

It is a junction number, because it is equal to n+sod(n) for n = 404240199 and 404240208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3882 + ... + 28697.

It is an arithmetic number, because the mean of its divisors is an integer number (17593200).

Almost surely, 2^404240232 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 404240232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562982400).

404240232 is an abundant number, since it is smaller than the sum of its proper divisors (721724568).

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

404240232 is a wasteful number, since it uses less digits than its factorization.

404240232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32646 (or 32642 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 404240232 is about 20105.7263484809. The cubic root of 404240232 is about 739.4006786109.

Adding to 404240232 its reverse (232042404), we get a palindrome (636282636).

The spelling of 404240232 in words is "four hundred four million, two hundred forty thousand, two hundred thirty-two".