405112164 has 24 divisors (see below), whose sum is σ = 952066080. Its totient is φ = 134065344.

The previous prime is 405112157. The next prime is 405112177. The reversal of 405112164 is 461211504.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119769 + ... + 123104.

It is an arithmetic number, because the mean of its divisors is an integer number (39669420).

Almost surely, 2^405112164 is an apocalyptic number.

It is an amenable number.

405112164 is an abundant number, since it is smaller than the sum of its proper divisors (546953916).

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

405112164 is a wasteful number, since it uses less digits than its factorization.

405112164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243019 (or 243017 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 405112164 is about 20127.3983415642. The cubic root of 405112164 is about 739.9319172815.

Adding to 405112164 its reverse (461211504), we get a palindrome (866323668).

The spelling of 405112164 in words is "four hundred five million, one hundred twelve thousand, one hundred sixty-four".