405922012 has 12 divisors (see below), whose sum is σ = 710601136. Its totient is φ = 202893120.

The previous prime is 405922001. The next prime is 405922031. The reversal of 405922012 is 210229504.

It is a super-2 number, since 2×405922012² = 329545359652256288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 2064 + ... + 28567.

Almost surely, 2^405922012 is an apocalyptic number.

It is an amenable number.

405922012 is a deficient number, since it is larger than the sum of its proper divisors (304679124).

405922012 is a wasteful number, since it uses less digits than its factorization.

405922012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33948 (or 33946 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 405922012 is about 20147.5063469403. The cubic root of 405922012 is about 740.4246479182.

The spelling of 405922012 in words is "four hundred five million, nine hundred twenty-two thousand, twelve".