857343960 has 128 divisors (see below), whose sum is σ = 3117657600. Its totient is φ = 207838080.

The previous prime is 857343947. The next prime is 857344009. The reversal of 857343960 is 69343758.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24204 + ... + 47963.

It is an arithmetic number, because the mean of its divisors is an integer number (24356700).

Almost surely, 2^857343960 is an apocalyptic number.

It is an amenable number.

857343960 is an abundant number, since it is smaller than the sum of its proper divisors (2260313640).

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

857343960 is a wasteful number, since it uses less digits than its factorization.

857343960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72198 (or 72188 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 857343960 is about 29280.4364721566. The cubic root of 857343960 is about 949.9885354110.

The spelling of 857343960 in words is "eight hundred fifty-seven million, three hundred forty-three thousand, nine hundred sixty".