2149989170 has 64 divisors (see below), whose sum is σ = 4709491200. Its totient is φ = 705063744.

The previous prime is 2149989157. The next prime is 2149989209. The reversal of 2149989170 is 719899412.

It is a super-2 number, since 2×2149989170² = 9244906862234577800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65264 + ... + 92516.

It is an arithmetic number, because the mean of its divisors is an integer number (73585800).

Almost surely, 2^2149989170 is an apocalyptic number.

2149989170 is an abundant number, since it is smaller than the sum of its proper divisors (2559502030).

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

2149989170 is a wasteful number, since it uses less digits than its factorization.

2149989170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27304 (or 27290 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 2149989170 is about 46367.9756944381. The cubic root of 2149989170 is about 1290.6607135574.

The spelling of 2149989170 in words is "two billion, one hundred forty-nine million, nine hundred eighty-nine thousand, one hundred seventy".