857464080 has 120 divisors (see below), whose sum is σ = 2921854656. Its totient is φ = 207863040.

The previous prime is 857464079. The next prime is 857464103. The reversal of 857464080 is 80464758.

857464080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14277 + ... + 43803.

Almost surely, 2^857464080 is an apocalyptic number.

857464080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857464080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460927328).

857464080 is an abundant number, since it is smaller than the sum of its proper divisors (2064390576).

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

857464080 is a wasteful number, since it uses less digits than its factorization.

857464080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29565 (or 29548 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 857464080 is about 29282.4875992461. The cubic root of 857464080 is about 950.0329000610.

The spelling of 857464080 in words is "eight hundred fifty-seven million, four hundred sixty-four thousand, eighty".