404489360 has 40 divisors (see below), whose sum is σ = 1025934336. Its totient is φ = 147086720.

The previous prime is 404489357. The next prime is 404489363. The reversal of 404489360 is 63984404.

It is an interprime number because it is at equal distance from previous prime (404489357) and next prime (404489363).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×404489360² = 327223284706419200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404489363) 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, 228944 + ... + 230703.

Almost surely, 2^404489360 is an apocalyptic number.

404489360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404489360 is an abundant number, since it is smaller than the sum of its proper divisors (621444976).

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

404489360 is a wasteful number, since it uses less digits than its factorization.

404489360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459671 (or 459665 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 404489360 is about 20111.9208431219. The cubic root of 404489360 is about 739.5525417602.

The spelling of 404489360 in words is "four hundred four million, four hundred eighty-nine thousand, three hundred sixty".