2149228250 has 128 divisors (see below), whose sum is σ = 4538334528. Its totient is φ = 756864000.

The previous prime is 2149228243. The next prime is 2149228253. The reversal of 2149228250 is 528229412.

It is a happy number.

It can be written as a sum of positive squares in 32 ways, for example, as 684711889 + 1464516361 = 26167^2 + 38269^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2149228250.

It is not an unprimeable number, because it can be changed into a prime (2149228253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7335104 + ... + 7335396.

Almost surely, 2^2149228250 is an apocalyptic number.

2149228250 is an abundant number, since it is smaller than the sum of its proper divisors (2389106278).

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

2149228250 is a wasteful number, since it uses less digits than its factorization.

2149228250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2149228250 is about 46359.7697362703. The cubic root of 2149228250 is about 1290.5084328783.

The spelling of 2149228250 in words is "two billion, one hundred forty-nine million, two hundred twenty-eight thousand, two hundred fifty".