870742490 has 16 divisors (see below), whose sum is σ = 1574245152. Its totient is φ = 346761744.

The previous prime is 870742463. The next prime is 870742529. The reversal of 870742490 is 94247078.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189524 + ... + 194063.

It is an arithmetic number, because the mean of its divisors is an integer number (98390322).

Almost surely, 2^870742490 is an apocalyptic number.

870742490 is a deficient number, since it is larger than the sum of its proper divisors (703502662).

870742490 is a wasteful number, since it uses less digits than its factorization.

870742490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383821.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 870742490 is about 29508.3461074998. The cubic root of 870742490 is about 954.9117687554.

The spelling of 870742490 in words is "eight hundred seventy million, seven hundred forty-two thousand, four hundred ninety".