2791800238 has 16 divisors (see below), whose sum is σ = 4237064640. Its totient is φ = 1379462656.

The previous prime is 2791800227. The next prime is 2791800239. The reversal of 2791800238 is 8320081972.

It is a self number, because there is not a number n which added to its sum of digits gives 2791800238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791800239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469995 + ... + 475897.

It is an arithmetic number, because the mean of its divisors is an integer number (264816540).

Almost surely, 2^2791800238 is an apocalyptic number.

2791800238 is a deficient number, since it is larger than the sum of its proper divisors (1445264402).

2791800238 is a wasteful number, since it uses less digits than its factorization.

2791800238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 2791800238 is about 52837.4889448770. The cubic root of 2791800238 is about 1408.0825399136.

The spelling of 2791800238 in words is "two billion, seven hundred ninety-one million, eight hundred thousand, two hundred thirty-eight".