985214890 has 48 divisors (see below), whose sum is σ = 2022493536. Its totient is φ = 342663200.

The previous prime is 985214887. The next prime is 985214891. The reversal of 985214890 is 98412589.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 985214890.

It is not an unprimeable number, because it can be changed into a prime (985214891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49725 + ... + 66655.

It is an arithmetic number, because the mean of its divisors is an integer number (42135282).

Almost surely, 2^985214890 is an apocalyptic number.

985214890 is an abundant number, since it is smaller than the sum of its proper divisors (1037278646).

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

985214890 is a wasteful number, since it uses less digits than its factorization.

985214890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16995 (or 16972 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 985214890 is about 31388.1329486161. The cubic root of 985214890 is about 995.0471396738.

It can be divided in two parts, 9852 and 14890, that added together give a palindrome (24742).

The spelling of 985214890 in words is "nine hundred eighty-five million, two hundred fourteen thousand, eight hundred ninety".