870851240 has 64 divisors (see below), whose sum is σ = 2299881600. Its totient is φ = 290504448.

The previous prime is 870851173. The next prime is 870851257. The reversal of 870851240 is 42158078.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 870851240.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31670 + ... + 52389.

It is an arithmetic number, because the mean of its divisors is an integer number (35935650).

Almost surely, 2^870851240 is an apocalyptic number.

It is an amenable number.

870851240 is an abundant number, since it is smaller than the sum of its proper divisors (1429030360).

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

870851240 is a wasteful number, since it uses less digits than its factorization.

870851240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84114 (or 84110 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 870851240 is about 29510.1887489728. The cubic root of 870851240 is about 954.9515211633.

The spelling of 870851240 in words is "eight hundred seventy million, eight hundred fifty-one thousand, two hundred forty".