858204380 has 24 divisors (see below), whose sum is σ = 1966068720. Its totient is φ = 312074240.

The previous prime is 858204367. The next prime is 858204397. The reversal of 858204380 is 83402858.

858204380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1950245 + ... + 1950684.

It is an arithmetic number, because the mean of its divisors is an integer number (81919530).

Almost surely, 2^858204380 is an apocalyptic number.

It is an amenable number.

858204380 is an abundant number, since it is smaller than the sum of its proper divisors (1107864340).

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

858204380 is a wasteful number, since it uses less digits than its factorization.

858204380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900949 (or 3900947 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 858204380 is about 29295.1255330985. The cubic root of 858204380 is about 950.3062281480.

The spelling of 858204380 in words is "eight hundred fifty-eight million, two hundred four thousand, three hundred eighty".