800138646 has 12 divisors (see below), whose sum is σ = 1733633772. Its totient is φ = 266712876.

The previous prime is 800138639. The next prime is 800138683. The reversal of 800138646 is 646831008.

It is a happy number.

800138646 is a `hidden beast` number, since 8 + 0 + 0 + 1 + 3 + 8 + 646 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 800138646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22226056 + ... + 22226091.

It is an arithmetic number, because the mean of its divisors is an integer number (144469481).

Almost surely, 2^800138646 is an apocalyptic number.

800138646 is an abundant number, since it is smaller than the sum of its proper divisors (933495126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800138646 is a wasteful number, since it uses less digits than its factorization.

800138646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44452155 (or 44452152 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 800138646 is about 28286.7220794492. The cubic root of 800138646 is about 928.3713917686.

The spelling of 800138646 in words is "eight hundred million, one hundred thirty-eight thousand, six hundred forty-six".