406504424 has 16 divisors (see below), whose sum is σ = 763358820. Its totient is φ = 202942080.

The previous prime is 406504421. The next prime is 406504429. The reversal of 406504424 is 424405604.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 310816900 + 95687524 = 17630^2 + 9782^2 .

It is not an unprimeable number, because it can be changed into a prime (406504421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33149 + ... + 43724.

Almost surely, 2^406504424 is an apocalyptic number.

It is an amenable number.

406504424 is a deficient number, since it is larger than the sum of its proper divisors (356854396).

406504424 is a wasteful number, since it uses less digits than its factorization.

406504424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77540 (or 77536 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 406504424 is about 20161.9548655382. The cubic root of 406504424 is about 740.7785961392.

The spelling of 406504424 in words is "four hundred six million, five hundred four thousand, four hundred twenty-four".