900344021 has 8 divisors (see below), whose sum is σ = 960814080. Its totient is φ = 840708288.

The previous prime is 900344017. The next prime is 900344069. The reversal of 900344021 is 120443009.

900344021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 900344021 - 2² = 900344017 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 (900344521) 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, 206351 + ... + 210668.

It is an arithmetic number, because the mean of its divisors is an integer number (120101760).

Almost surely, 2^900344021 is an apocalyptic number.

It is an amenable number.

900344021 is a deficient number, since it is larger than the sum of its proper divisors (60470059).

900344021 is a wasteful number, since it uses less digits than its factorization.

900344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417163.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 900344021 is about 30005.7331355193. The cubic root of 900344021 is about 965.6123869433.

The spelling of 900344021 in words is "nine hundred million, three hundred forty-four thousand, twenty-one".