2390985218 has 8 divisors (see below), whose sum is σ = 3586711548. Its totient is φ = 1195414704.

The previous prime is 2390985209. The next prime is 2390985277. The reversal of 2390985218 is 8125890932.

It can be written as a sum of positive squares in 2 ways, for example, as 1658362729 + 732622489 = 40723^2 + 27067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13580 + ... + 70472.

Almost surely, 2^2390985218 is an apocalyptic number.

2390985218 is a deficient number, since it is larger than the sum of its proper divisors (1195726330).

2390985218 is a wasteful number, since it uses less digits than its factorization.

2390985218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77908.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 2390985218 is about 48897.7015615254. The cubic root of 2390985218 is about 1337.1874657767.

The spelling of 2390985218 in words is "two billion, three hundred ninety million, nine hundred eighty-five thousand, two hundred eighteen".