404053421 has 8 divisors (see below), whose sum is σ = 408391680. Its totient is φ = 399733488.

The previous prime is 404053367. The next prime is 404053427. The reversal of 404053421 is 124350404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404053421 - 2¹⁸ = 403791277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404053427) 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, 42275 + ... + 50943.

It is an arithmetic number, because the mean of its divisors is an integer number (51048960).

Almost surely, 2^404053421 is an apocalyptic number.

It is an amenable number.

404053421 is a deficient number, since it is larger than the sum of its proper divisors (4338259).

404053421 is a wasteful number, since it uses less digits than its factorization.

404053421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 404053421 is about 20101.0800953581. The cubic root of 404053421 is about 739.2867616441.

The spelling of 404053421 in words is "four hundred four million, fifty-three thousand, four hundred twenty-one".