2980395649 has 27 divisors (see below), whose sum is σ = 3816207171. Its totient is φ = 2319110640.

The previous prime is 2980395629. The next prime is 2980395673. The reversal of 2980395649 is 9465930892.

It is a happy number.

The square root of 2980395649 is 54593.

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., 397723249 + 2582672400 = 19943^2 + 50820^2 .

It is not a de Polignac number, because 2980395649 - 2²⁹ = 2443524737 is a prime.

It is a super-3 number, since 3×2980395649³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2980395649.

It is not an unprimeable number, because it can be changed into a prime (2980395619) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4203307 + ... + 4204015.

Almost surely, 2^2980395649 is an apocalyptic number.

2980395649 is the 54593-rd square number.

2980395649 is the 27297-th centered octagonal number.

It is an amenable number.

2980395649 is a deficient number, since it is larger than the sum of its proper divisors (835811522).

2980395649 is an frugal number, since it uses more digits than its factorization.

2980395649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The cubic root of 2980395649 is about 1439.1011058256.

The spelling of 2980395649 in words is "two billion, nine hundred eighty million, three hundred ninety-five thousand, six hundred forty-nine".