900860638 has 16 divisors (see below), whose sum is σ = 1374796800. Its totient is φ = 442636600.

The previous prime is 900860633. The next prime is 900860641. The reversal of 900860638 is 836068009.

It is a self number, because there is not a number n which added to its sum of digits gives 900860638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900860633) 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, 33963 + ... + 54361.

It is an arithmetic number, because the mean of its divisors is an integer number (85924800).

Almost surely, 2^900860638 is an apocalyptic number.

900860638 is a deficient number, since it is larger than the sum of its proper divisors (473936162).

900860638 is a wasteful number, since it uses less digits than its factorization.

900860638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 900860638 is about 30014.3405391489. The cubic root of 900860638 is about 965.7970409495.

The spelling of 900860638 in words is "nine hundred million, eight hundred sixty thousand, six hundred thirty-eight".