404002304 has 20 divisors (see below), whose sum is σ = 807216564. Its totient is φ = 202000896.

The previous prime is 404002279. The next prime is 404002307. The reversal of 404002304 is 403200404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404002307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394022 + ... + 395045.

Almost surely, 2^404002304 is an apocalyptic number.

It is an amenable number.

404002304 is a deficient number, since it is larger than the sum of its proper divisors (403214260).

404002304 is an frugal number, since it uses more digits than its factorization.

404002304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789085 (or 789069 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 404002304 is about 20099.8085563022. The cubic root of 404002304 is about 739.2555844836.

Adding to 404002304 its reverse (403200404), we get a palindrome (807202708).

The spelling of 404002304 in words is "four hundred four million, two thousand, three hundred four".