1989245214 has 48 divisors (see below), whose sum is σ = 4704860160. Its totient is φ = 602416080.

The previous prime is 1989245179. The next prime is 1989245221. The reversal of 1989245214 is 4125429891.

It is a happy number.

1989245214 is a `hidden beast` number, since 198 + 9 + 2 + 452 + 1 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1989245214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 530157 + ... + 533895.

It is an arithmetic number, because the mean of its divisors is an integer number (98017920).

Almost surely, 2^1989245214 is an apocalyptic number.

1989245214 is an abundant number, since it is smaller than the sum of its proper divisors (2715614946).

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

1989245214 is a wasteful number, since it uses less digits than its factorization.

1989245214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445 (or 6442 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 1989245214 is about 44600.9553036703. The cubic root of 1989245214 is about 1257.6586261772.

The spelling of 1989245214 in words is "one billion, nine hundred eighty-nine million, two hundred forty-five thousand, two hundred fourteen".