840272712 has 32 divisors (see below), whose sum is σ = 2120320800. Its totient is φ = 277472384.

The previous prime is 840272687. The next prime is 840272723. The reversal of 840272712 is 217272048.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161037 + ... + 166172.

It is an arithmetic number, because the mean of its divisors is an integer number (66260025).

Almost surely, 2^840272712 is an apocalyptic number.

It is an amenable number.

840272712 is an abundant number, since it is smaller than the sum of its proper divisors (1280048088).

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

840272712 is a wasteful number, since it uses less digits than its factorization.

840272712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327325 (or 327321 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 840272712 is about 28987.4578395554. The cubic root of 840272712 is about 943.6408938851.

The spelling of 840272712 in words is "eight hundred forty million, two hundred seventy-two thousand, seven hundred twelve".