800857380 has 24 divisors (see below), whose sum is σ = 2242400832. Its totient is φ = 213561952.

The previous prime is 800857357. The next prime is 800857397. The reversal of 800857380 is 83758008.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 6673752 + ... + 6673871.

It is an arithmetic number, because the mean of its divisors is an integer number (93433368).

Almost surely, 2^800857380 is an apocalyptic number.

It is an amenable number.

800857380 is an abundant number, since it is smaller than the sum of its proper divisors (1441543452).

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

800857380 is a wasteful number, since it uses less digits than its factorization.

800857380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347635 (or 13347633 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 800857380 is about 28299.4236690432. The cubic root of 800857380 is about 928.6492821058.

The spelling of 800857380 in words is "eight hundred million, eight hundred fifty-seven thousand, three hundred eighty".