2690449168 has 20 divisors (see below), whose sum is σ = 5686631568. Its totient is φ = 1222931360.

The previous prime is 2690449163. The next prime is 2690449187. The reversal of 2690449168 is 8619440962.

It is not an unprimeable number, because it can be changed into a prime (2690449163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7643146 + ... + 7643497.

Almost surely, 2^2690449168 is an apocalyptic number.

It is an amenable number.

2690449168 is an abundant number, since it is smaller than the sum of its proper divisors (2996182400).

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

2690449168 is a wasteful number, since it uses less digits than its factorization.

2690449168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15286662 (or 15286656 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 2690449168 is about 51869.5398861413. The cubic root of 2690449168 is about 1390.8328201016.

The spelling of 2690449168 in words is "two billion, six hundred ninety million, four hundred forty-nine thousand, one hundred sixty-eight".