2390636642 has 8 divisors (see below), whose sum is σ = 3588461676. Its totient is φ = 1194482752.

The previous prime is 2390636621. The next prime is 2390636707. The reversal of 2390636642 is 2466360932.

2390636642 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 2 ways, for example, as 2313706201 + 76930441 = 48101^2 + 8771^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2390636642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414203 + ... + 419934.

Almost surely, 2^2390636642 is an apocalyptic number.

2390636642 is a deficient number, since it is larger than the sum of its proper divisors (1197825034).

2390636642 is a wasteful number, since it uses less digits than its factorization.

2390636642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835572.

The product of its (nonzero) digits is 279936, while the sum is 41.

The square root of 2390636642 is about 48894.1370922936. The cubic root of 2390636642 is about 1337.1224808342.

The spelling of 2390636642 in words is "two billion, three hundred ninety million, six hundred thirty-six thousand, six hundred forty-two".