900426021 has 8 divisors (see below), whose sum is σ = 1309710624. Its totient is φ = 545712720.

The previous prime is 900425983. The next prime is 900426041. The reversal of 900426021 is 120624009.

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

It is not a de Polignac number, because 900426021 - 2⁹ = 900425509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 900425982 and 900426000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900426041) 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, 13642786 + ... + 13642851.

It is an arithmetic number, because the mean of its divisors is an integer number (163713828).

Almost surely, 2^900426021 is an apocalyptic number.

It is an amenable number.

900426021 is a deficient number, since it is larger than the sum of its proper divisors (409284603).

900426021 is a wasteful number, since it uses less digits than its factorization.

900426021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27285651.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 900426021 is about 30007.0995099493. The cubic root of 900426021 is about 965.6417008538.

The spelling of 900426021 in words is "nine hundred million, four hundred twenty-six thousand, twenty-one".