405500232 has 32 divisors (see below), whose sum is σ = 1020473280. Its totient is φ = 134270400.

The previous prime is 405500219. The next prime is 405500233. The reversal of 405500232 is 232005504.

It is a junction number, because it is equal to n+sod(n) for n = 405500199 and 405500208.

It is not an unprimeable number, because it can be changed into a prime (405500233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52323 + ... + 59570.

It is an arithmetic number, because the mean of its divisors is an integer number (31889790).

Almost surely, 2^405500232 is an apocalyptic number.

It is an amenable number.

405500232 is an abundant number, since it is smaller than the sum of its proper divisors (614973048).

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

405500232 is a wasteful number, since it uses less digits than its factorization.

405500232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112053 (or 112049 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 405500232 is about 20137.0363261330. The cubic root of 405500232 is about 740.1681088731.

Adding to 405500232 its reverse (232005504), we get a palindrome (637505736).

The spelling of 405500232 in words is "four hundred five million, five hundred thousand, two hundred thirty-two".