404513004 has 24 divisors (see below), whose sum is σ = 1078701568. Its totient is φ = 115575120.

The previous prime is 404512981. The next prime is 404513009. The reversal of 404513004 is 400315404.

It is a super-3 number, since 3×404513004³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (404513009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2407732 + ... + 2407899.

Almost surely, 2^404513004 is an apocalyptic number.

It is an amenable number.

404513004 is an abundant number, since it is smaller than the sum of its proper divisors (674188564).

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

404513004 is a wasteful number, since it uses less digits than its factorization.

404513004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815645 (or 4815643 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 404513004 is about 20112.5086451193. The cubic root of 404513004 is about 739.5669514014.

Adding to 404513004 its reverse (400315404), we get a palindrome (804828408).

The spelling of 404513004 in words is "four hundred four million, five hundred thirteen thousand, four".