2149845090 has 32 divisors (see below), whose sum is σ = 5163670080. Its totient is φ = 572842944.

The previous prime is 2149845073. The next prime is 2149845101. The reversal of 2149845090 is 905489412.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11796 + ... + 66624.

It is an arithmetic number, because the mean of its divisors is an integer number (161364690).

Almost surely, 2^2149845090 is an apocalyptic number.

2149845090 is an abundant number, since it is smaller than the sum of its proper divisors (3013824990).

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

2149845090 is a wasteful number, since it uses less digits than its factorization.

2149845090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56146.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 2149845090 is about 46366.4220098985. The cubic root of 2149845090 is about 1290.6318820091.

The spelling of 2149845090 in words is "two billion, one hundred forty-nine million, eight hundred forty-five thousand, ninety".