2149796730 has 64 divisors (see below), whose sum is σ = 5204803968. Its totient is φ = 568270080.

The previous prime is 2149796713. The next prime is 2149796749. The reversal of 2149796730 is 376979412.

It is a happy number.

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 2149796730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2839512 + ... + 2840268.

It is an arithmetic number, because the mean of its divisors is an integer number (81325062).

Almost surely, 2^2149796730 is an apocalyptic number.

2149796730 is an abundant number, since it is smaller than the sum of its proper divisors (3055007238).

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

2149796730 is a wasteful number, since it uses less digits than its factorization.

2149796730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 2149796730 is about 46365.9005088869. The cubic root of 2149796730 is about 1290.6222045016.

The spelling of 2149796730 in words is "two billion, one hundred forty-nine million, seven hundred ninety-six thousand, seven hundred thirty".