404489359 has 4 divisors (see below), whose sum is σ = 404645616. Its totient is φ = 404333104.

The previous prime is 404489357. The next prime is 404489363. The reversal of 404489359 is 953984404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404489359 - 2¹ = 404489357 is a prime.

It is a super-2 number, since 2×404489359² = 327223283088461762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404489357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74179 + ... + 79444.

It is an arithmetic number, because the mean of its divisors is an integer number (101161404).

Almost surely, 2^404489359 is an apocalyptic number.

404489359 is a deficient number, since it is larger than the sum of its proper divisors (156257).

404489359 is a wasteful number, since it uses less digits than its factorization.

404489359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156256.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 404489359 is about 20111.9208182610. The cubic root of 404489359 is about 739.5525411508.

The spelling of 404489359 in words is "four hundred four million, four hundred eighty-nine thousand, three hundred fifty-nine".