800421844 has 24 divisors (see below), whose sum is σ = 1465446528. Its totient is φ = 382138560.

The previous prime is 800421833. The next prime is 800421889. The reversal of 800421844 is 448124008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44214 + ... + 59629.

It is an arithmetic number, because the mean of its divisors is an integer number (61060272).

Almost surely, 2^800421844 is an apocalyptic number.

It is an amenable number.

800421844 is a deficient number, since it is larger than the sum of its proper divisors (665024684).

800421844 is a wasteful number, since it uses less digits than its factorization.

800421844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103935 (or 103933 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 31.

The square root of 800421844 is about 28291.7274834889. The cubic root of 800421844 is about 928.4809069177.

The spelling of 800421844 in words is "eight hundred million, four hundred twenty-one thousand, eight hundred forty-four".