858223752 has 16 divisors (see below), whose sum is σ = 2145559440. Its totient is φ = 286074576.

The previous prime is 858223741. The next prime is 858223829. The reversal of 858223752 is 257322858.

It is a hoax number, since the sum of its digits (42) 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 3 ways as a sum of consecutive naturals, for example, 17879638 + ... + 17879685.

It is an arithmetic number, because the mean of its divisors is an integer number (134097465).

Almost surely, 2^858223752 is an apocalyptic number.

It is an amenable number.

858223752 is an abundant number, since it is smaller than the sum of its proper divisors (1287335688).

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

858223752 is a wasteful number, since it uses less digits than its factorization.

858223752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35759332 (or 35759328 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 858223752 is about 29295.4561664433. The cubic root of 858223752 is about 950.3133784236.

The spelling of 858223752 in words is "eight hundred fifty-eight million, two hundred twenty-three thousand, seven hundred fifty-two".