856102740 has 24 divisors (see below), whose sum is σ = 2397087840. Its totient is φ = 228294048.

The previous prime is 856102739. The next prime is 856102747. The reversal of 856102740 is 47201658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856102747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7134130 + ... + 7134249.

It is an arithmetic number, because the mean of its divisors is an integer number (99878660).

Almost surely, 2^856102740 is an apocalyptic number.

It is an amenable number.

856102740 is an abundant number, since it is smaller than the sum of its proper divisors (1540985100).

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

856102740 is a wasteful number, since it uses less digits than its factorization.

856102740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14268391 (or 14268389 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 856102740 is about 29259.2334144283. The cubic root of 856102740 is about 949.5298652550.

The spelling of 856102740 in words is "eight hundred fifty-six million, one hundred two thousand, seven hundred forty".