405164 has 12 divisors (see below), whose sum is σ = 714000. Its totient is φ = 201168.

The previous prime is 405157. The next prime is 405179. The reversal of 405164 is 461504.

It is a happy number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (59500).

2⁴⁰⁵¹⁶⁴ is an apocalyptic number.

It is an amenable number.

405164 is a deficient number, since it is larger than the sum of its proper divisors (308836).

405164 is a wasteful number, since it uses less digits than its factorization.

405164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 405164 is about 636.5249405954. The cubic root of 405164 is about 73.9963475188.

Adding to 405164 its reverse (461504), we get a palindrome (866668).

The spelling of 405164 in words is "four hundred five thousand, one hundred sixty-four".