857746272 has 48 divisors (see below), whose sum is σ = 2254295232. Its totient is φ = 285571200.

The previous prime is 857746259. The next prime is 857746273. The reversal of 857746272 is 272647758.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857746273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82147 + ... + 91997.

It is an arithmetic number, because the mean of its divisors is an integer number (46964484).

Almost surely, 2^857746272 is an apocalyptic number.

It is an amenable number.

857746272 is an abundant number, since it is smaller than the sum of its proper divisors (1396548960).

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

857746272 is a wasteful number, since it uses less digits than its factorization.

857746272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771 (or 10763 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 48.

The square root of 857746272 is about 29287.3056459620. The cubic root of 857746272 is about 950.1371074504.

The spelling of 857746272 in words is "eight hundred fifty-seven million, seven hundred forty-six thousand, two hundred seventy-two".