404493594 has 16 divisors (see below), whose sum is σ = 844160832. Its totient is φ = 128968928.

The previous prime is 404493559. The next prime is 404493613. The reversal of 404493594 is 495394404.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465419 + ... + 1465694.

It is an arithmetic number, because the mean of its divisors is an integer number (52760052).

Almost surely, 2^404493594 is an apocalyptic number.

404493594 is an abundant number, since it is smaller than the sum of its proper divisors (439667238).

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

404493594 is a wasteful number, since it uses less digits than its factorization.

404493594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931141.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 404493594 is about 20112.0261038017. The cubic root of 404493594 is about 739.5551221779. Note that the first 3 decimals are identical.

The spelling of 404493594 in words is "four hundred four million, four hundred ninety-three thousand, five hundred ninety-four".