604905405 has 32 divisors (see below), whose sum is σ = 1087623936. Its totient is φ = 284849664.

The previous prime is 604905391. The next prime is 604905473. The reversal of 604905405 is 504509406.

It is not a de Polignac number, because 604905405 - 2¹⁰ = 604904381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62952 + ... + 71921.

It is an arithmetic number, because the mean of its divisors is an integer number (33988248).

Almost surely, 2^604905405 is an apocalyptic number.

604905405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

604905405 is a deficient number, since it is larger than the sum of its proper divisors (482718531).

604905405 is a wasteful number, since it uses less digits than its factorization.

604905405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134917.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 604905405 is about 24594.8247605060. The cubic root of 604905405 is about 845.7249733355.

The spelling of 604905405 in words is "six hundred four million, nine hundred five thousand, four hundred five".