2490122816 has 56 divisors (see below), whose sum is σ = 5126355000. Its totient is φ = 1198690304.

The previous prime is 2490122779. The next prime is 2490122837. The reversal of 2490122816 is 6182210942.

It can be written as a sum of positive squares in 4 ways, for example, as 20430400 + 2469692416 = 4520^2 + 49696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720260 + ... + 723708.

Almost surely, 2^2490122816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2490122816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2563177500).

2490122816 is an abundant number, since it is smaller than the sum of its proper divisors (2636232184).

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

2490122816 is a wasteful number, since it uses less digits than its factorization.

2490122816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2490122816 is about 49901.1304080379. The cubic root of 2490122816 is about 1355.4190623872.

The spelling of 2490122816 in words is "two billion, four hundred ninety million, one hundred twenty-two thousand, eight hundred sixteen".