405710664 has 16 divisors (see below), whose sum is σ = 1014276720. Its totient is φ = 135236880.

The previous prime is 405710663. The next prime is 405710681. The reversal of 405710664 is 466017504.

It is a super-2 number, since 2×405710664² = 329202285766641792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (405710663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8452282 + ... + 8452329.

It is an arithmetic number, because the mean of its divisors is an integer number (63392295).

Almost surely, 2^405710664 is an apocalyptic number.

It is an amenable number.

405710664 is an abundant number, since it is smaller than the sum of its proper divisors (608566056).

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

405710664 is a wasteful number, since it uses less digits than its factorization.

405710664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16904620 (or 16904616 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 405710664 is about 20142.2606477029. The cubic root of 405710664 is about 740.2961220514.

The spelling of 405710664 in words is "four hundred five million, seven hundred ten thousand, six hundred sixty-four".