404311490 has 32 divisors (see below), whose sum is σ = 796525056. Its totient is φ = 146540160.

The previous prime is 404311489. The next prime is 404311577. The reversal of 404311490 is 94113404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28559 + ... + 40301.

It is an arithmetic number, because the mean of its divisors is an integer number (24891408).

Almost surely, 2^404311490 is an apocalyptic number.

404311490 is a deficient number, since it is larger than the sum of its proper divisors (392213566).

404311490 is a wasteful number, since it uses less digits than its factorization.

404311490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12074.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 404311490 is about 20107.4983526047. The cubic root of 404311490 is about 739.4441223471. Note that the first 3 decimals are identical.

Adding to 404311490 its reverse (94113404), we get a palindrome (498424894).

The spelling of 404311490 in words is "four hundred four million, three hundred eleven thousand, four hundred ninety".