232415406 has 28 divisors (see below), whose sum is σ = 522698832. Its totient is φ = 77471316.

The previous prime is 232415399. The next prime is 232415411. The reversal of 232415406 is 604514232.

It is a super-2 number, since 2×232415406² = 108033841892289672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 232415406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 78246 + ... + 81161.

Almost surely, 2^232415406 is an apocalyptic number.

232415406 is an abundant number, since it is smaller than the sum of its proper divisors (290283426).

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

232415406 is an equidigital number, since it uses as much as digits as its factorization.

232415406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159427 (or 159412 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 232415406 is about 15245.1764830716. The cubic root of 232415406 is about 614.8298875130.

Adding to 232415406 its reverse (604514232), we get a palindrome (836929638).

The spelling of 232415406 in words is "two hundred thirty-two million, four hundred fifteen thousand, four hundred six".