857945358 has 80 divisors (see below), whose sum is σ = 2069291664. Its totient is φ = 264695040.

The previous prime is 857945357. The next prime is 857945369. The reversal of 857945358 is 853549758.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857945351) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 165441 + ... + 170547.

Almost surely, 2^857945358 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857945358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034645832).

857945358 is an abundant number, since it is smaller than the sum of its proper divisors (1211346306).

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

857945358 is a wasteful number, since it uses less digits than its factorization.

857945358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199 (or 5190 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The square root of 857945358 is about 29290.7042933419. The cubic root of 857945358 is about 950.2106118457.

The spelling of 857945358 in words is "eight hundred fifty-seven million, nine hundred forty-five thousand, three hundred fifty-eight".