404067406 has 12 divisors (see below), whose sum is σ = 613512432. Its totient is φ = 199592756.

The previous prime is 404067397. The next prime is 404067437. The reversal of 404067406 is 604760404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 886 + ... + 28441.

It is an arithmetic number, because the mean of its divisors is an integer number (51126036).

Almost surely, 2^404067406 is an apocalyptic number.

404067406 is a deficient number, since it is larger than the sum of its proper divisors (209445026).

404067406 is an equidigital number, since it uses as much as digits as its factorization.

404067406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29495 (or 29412 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 404067406 is about 20101.4279592272. The cubic root of 404067406 is about 739.2952908843.

The spelling of 404067406 in words is "four hundred four million, sixty-seven thousand, four hundred six".