404030389 has 8 divisors (see below), whose sum is σ = 469319168. Its totient is φ = 340634160.

The previous prime is 404030353. The next prime is 404030413. The reversal of 404030389 is 983030404.

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 404030389 - 2⁹ = 404029877 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 404030389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404030309) 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, 472677 + ... + 473530.

It is an arithmetic number, because the mean of its divisors is an integer number (58664896).

Almost surely, 2^404030389 is an apocalyptic number.

It is an amenable number.

404030389 is a deficient number, since it is larger than the sum of its proper divisors (65288779).

404030389 is an equidigital number, since it uses as much as digits as its factorization.

404030389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946275.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 404030389 is about 20100.5071826559. The cubic root of 404030389 is about 739.2727143463.

The spelling of 404030389 in words is "four hundred four million, thirty thousand, three hundred eighty-nine".