404221459 has 4 divisors (see below), whose sum is σ = 418160160. Its totient is φ = 390282760.

The previous prime is 404221439. The next prime is 404221469. The reversal of 404221459 is 954122404.

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 404221459 - 2¹⁷ = 404090387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404221459.

It is not an unprimeable number, because it can be changed into a prime (404221439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6969307 + ... + 6969364.

It is an arithmetic number, because the mean of its divisors is an integer number (104540040).

Almost surely, 2^404221459 is an apocalyptic number.

404221459 is a deficient number, since it is larger than the sum of its proper divisors (13938701).

404221459 is a wasteful number, since it uses less digits than its factorization.

404221459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13938700.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 404221459 is about 20105.2594860151. The cubic root of 404221459 is about 739.3892324603.

The spelling of 404221459 in words is "four hundred four million, two hundred twenty-one thousand, four hundred fifty-nine".