2802961249 has 9 divisors (see below), whose sum is σ = 3081581139. Its totient is φ = 2547617160.

The previous prime is 2802961243. The next prime is 2802961267. The reversal of 2802961249 is 9421692082.

It is a happy number.

The square root of 2802961249 is 52943.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2099014225 + 703947024 = 45815^2 + 26532^2 .

It is not a de Polignac number, because 2802961249 - 2¹³ = 2802953057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2802961243) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 579967 + ... + 584779.

Almost surely, 2^2802961249 is an apocalyptic number.

2802961249 is the 52943-rd square number.

2802961249 is the 26472-nd centered octagonal number.

It is an amenable number.

2802961249 is a deficient number, since it is larger than the sum of its proper divisors (278619890).

2802961249 is an frugal number, since it uses more digits than its factorization.

2802961249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648 (or 4824 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The cubic root of 2802961249 is about 1409.9564476932.

The spelling of 2802961249 in words is "two billion, eight hundred two million, nine hundred sixty-one thousand, two hundred forty-nine".