2390664385 has 8 divisors (see below), whose sum is σ = 2889738216. Its totient is φ = 1898570880.

The previous prime is 2390664377. The next prime is 2390664401. The reversal of 2390664385 is 5834660932.

It is a happy number.

2390664385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 273836304 + 2116828081 = 16548^2 + 46009^2 .

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

It is not a de Polignac number, because 2390664385 - 2³ = 2390664377 is a prime.

It is a Duffinian number.

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, 1744326 + ... + 1745695.

It is an arithmetic number, because the mean of its divisors is an integer number (361217277).

Almost surely, 2^2390664385 is an apocalyptic number.

It is an amenable number.

2390664385 is a deficient number, since it is larger than the sum of its proper divisors (499073831).

2390664385 is a wasteful number, since it uses less digits than its factorization.

2390664385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490163.

The product of its (nonzero) digits is 933120, while the sum is 46.

The square root of 2390664385 is about 48894.4207962422. The cubic root of 2390664385 is about 1337.1276531866.

The spelling of 2390664385 in words is "two billion, three hundred ninety million, six hundred sixty-four thousand, three hundred eighty-five".