404606404 has 12 divisors (see below), whose sum is σ = 715072428. Its totient is φ = 200300000.

The previous prime is 404606383. The next prime is 404606407.

404606404 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 236852100 + 167754304 = 15390^2 + 12952^2 .

It is a super-2 number, since 2×404606404² = 327412684315622432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404606407) 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, 500347 + ... + 501154.

It is an arithmetic number, because the mean of its divisors is an integer number (59589369).

Almost surely, 2^404606404 is an apocalyptic number.

It is an amenable number.

404606404 is a deficient number, since it is larger than the sum of its proper divisors (310466024).

404606404 is a wasteful number, since it uses less digits than its factorization.

404606404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001606 (or 1001604 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 404606404 is about 20114.8304491984. The cubic root of 404606404 is about 739.6238677731.

It can be divided in two parts, 40460 and 6404, that added together give a palindrome (46864).

The spelling of 404606404 in words is "four hundred four million, six hundred six thousand, four hundred four".