800858120 has 64 divisors (see below), whose sum is σ = 1830712320. Its totient is φ = 315270144.

The previous prime is 800858089. The next prime is 800858129. The reversal of 800858120 is 21858008.

It is not an unprimeable number, because it can be changed into a prime (800858129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736217 + ... + 737303.

It is an arithmetic number, because the mean of its divisors is an integer number (28604880).

Almost surely, 2^800858120 is an apocalyptic number.

It is an amenable number.

800858120 is an abundant number, since it is smaller than the sum of its proper divisors (1029854200).

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

800858120 is a wasteful number, since it uses less digits than its factorization.

800858120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 800858120 is about 28299.4367435113. The cubic root of 800858120 is about 928.6495681327.

The spelling of 800858120 in words is "eight hundred million, eight hundred fifty-eight thousand, one hundred twenty".