404290469 has 16 divisors (see below), whose sum is σ = 445798080. Its totient is φ = 363600000.

The previous prime is 404290457. The next prime is 404290477. The reversal of 404290469 is 964092404.

It is a cyclic number.

It is not a de Polignac number, because 404290469 - 2⁸ = 404290213 is a prime.

It is a super-2 number, since 2×404290469² = 326901566648479922, 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 (404290409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499337 + ... + 500145.

It is an arithmetic number, because the mean of its divisors is an integer number (27862380).

Almost surely, 2^404290469 is an apocalyptic number.

It is an amenable number.

404290469 is a deficient number, since it is larger than the sum of its proper divisors (41507611).

404290469 is a wasteful number, since it uses less digits than its factorization.

404290469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 404290469 is about 20106.9756303627. The cubic root of 404290469 is about 739.4313070428.

The spelling of 404290469 in words is "four hundred four million, two hundred ninety thousand, four hundred sixty-nine".