900404013 has 8 divisors (see below), whose sum is σ = 1207904608. Its totient is φ = 596586384.

The previous prime is 900403979. The next prime is 900404027. The reversal of 900404013 is 310404009.

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

It is not a de Polignac number, because 900404013 - 2¹⁷ = 900272941 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 (900404033) 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, 920170 + ... + 921147.

It is an arithmetic number, because the mean of its divisors is an integer number (150988076).

Almost surely, 2^900404013 is an apocalyptic number.

It is an amenable number.

900404013 is a deficient number, since it is larger than the sum of its proper divisors (307500595).

900404013 is a wasteful number, since it uses less digits than its factorization.

900404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841483.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 900404013 is about 30006.7327944913. The cubic root of 900404013 is about 965.6338334609.

The spelling of 900404013 in words is "nine hundred million, four hundred four thousand, thirteen".