2149296309 has 64 divisors (see below), whose sum is σ = 3395174400. Its totient is φ = 1341748800.

The previous prime is 2149296307. The next prime is 2149296361. The reversal of 2149296309 is 9036929412.

It is a happy number.

2149296309 is a `hidden beast` number, since 2 + 1 + 4 + 9 + 2 + 9 + 630 + 9 = 666.

It is not a de Polignac number, because 2149296309 - 2¹ = 2149296307 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149296307) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 3505887 + ... + 3506499.

It is an arithmetic number, because the mean of its divisors is an integer number (53049600).

Almost surely, 2^2149296309 is an apocalyptic number.

It is an amenable number.

2149296309 is a deficient number, since it is larger than the sum of its proper divisors (1245878091).

2149296309 is a wasteful number, since it uses less digits than its factorization.

2149296309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 2149296309 is about 46360.5037612837. The cubic root of 2149296309 is about 1290.5220547890.

The spelling of 2149296309 in words is "two billion, one hundred forty-nine million, two hundred ninety-six thousand, three hundred nine".