2390916609 has 21 divisors (see below), whose sum is σ = 3586715569. Its totient is φ = 1593064260.

The previous prime is 2390916587. The next prime is 2390916611. The reversal of 2390916609 is 9066190932.

It is a happy number.

The square root of 2390916609 is 48897.

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

2390916609 is a `hidden beast` number, since 2 + 39 + 0 + 9 + 1 + 6 + 609 = 666.

It is not a de Polignac number, because 2390916609 - 2²¹ = 2388819457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2390916679) 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 20 ways as a sum of consecutive naturals, for example, 1319314 + ... + 1321124.

Almost surely, 2^2390916609 is an apocalyptic number.

2390916609 is the 48897-th square number.

2390916609 is the 24449-th centered octagonal number.

It is an amenable number.

2390916609 is a deficient number, since it is larger than the sum of its proper divisors (1195798960).

2390916609 is an frugal number, since it uses more digits than its factorization.

2390916609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The cubic root of 2390916609 is about 1337.1746755161.

The spelling of 2390916609 in words is "two billion, three hundred ninety million, nine hundred sixteen thousand, six hundred nine".