404340464 has 40 divisors (see below), whose sum is σ = 856552320. Its totient is φ = 183377600.

The previous prime is 404340457. The next prime is 404340467. The reversal of 404340464 is 464043404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404340467) 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, 84077 + ... + 88755.

It is an arithmetic number, because the mean of its divisors is an integer number (21413808).

Almost surely, 2^404340464 is an apocalyptic number.

404340464 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

404340464 is an abundant number, since it is smaller than the sum of its proper divisors (452211856).

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

404340464 is a wasteful number, since it uses less digits than its factorization.

404340464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189 (or 5183 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 404340464 is about 20108.2188171901. The cubic root of 404340464 is about 739.4617854136.

Adding to 404340464 its reverse (464043404), we get a palindrome (868383868).

The spelling of 404340464 in words is "four hundred four million, three hundred forty thousand, four hundred sixty-four".