404566434 has 64 divisors (see below), whose sum is σ = 925344000. Its totient is φ = 130942080.

The previous prime is 404566433. The next prime is 404566441. The reversal of 404566434 is 434665404.

404566434 is a `hidden beast` number, since 4 + 0 + 4 + 5 + 6 + 643 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (404566433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 794572 + ... + 795080.

It is an arithmetic number, because the mean of its divisors is an integer number (14458500).

Almost surely, 2^404566434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404566434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462672000).

404566434 is an abundant number, since it is smaller than the sum of its proper divisors (520777566).

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

404566434 is a wasteful number, since it uses less digits than its factorization.

404566434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 404566434 is about 20113.8368791238. The cubic root of 404566434 is about 739.5995118071.

The spelling of 404566434 in words is "four hundred four million, five hundred sixty-six thousand, four hundred thirty-four".