857466944 has 56 divisors (see below), whose sum is σ = 1859816448. Its totient is φ = 390481920.

The previous prime is 857466901. The next prime is 857466949. The reversal of 857466944 is 449664758.

It is not an unprimeable number, because it can be changed into a prime (857466949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21017 + ... + 46439.

It is an arithmetic number, because the mean of its divisors is an integer number (33211008).

Almost surely, 2^857466944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857466944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929908224).

857466944 is an abundant number, since it is smaller than the sum of its proper divisors (1002349504).

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

857466944 is a wasteful number, since it uses less digits than its factorization.

857466944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25483 (or 25473 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The square root of 857466944 is about 29282.5365021543. The cubic root of 857466944 is about 950.0339577889.

The spelling of 857466944 in words is "eight hundred fifty-seven million, four hundred sixty-six thousand, nine hundred forty-four".