2238865015 has 4 divisors (see below), whose sum is σ = 2686638024. Its totient is φ = 1791092008.

The previous prime is 2238865007. The next prime is 2238865039. The reversal of 2238865015 is 5105688322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2238865015 - 2³ = 2238865007 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

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, 223886497 + ... + 223886506.

It is an arithmetic number, because the mean of its divisors is an integer number (671659506).

Almost surely, 2^2238865015 is an apocalyptic number.

2238865015 is a deficient number, since it is larger than the sum of its proper divisors (447773009).

2238865015 is an equidigital number, since it uses as much as digits as its factorization.

2238865015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447773008.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 2238865015 is about 47316.6462780278. The cubic root of 2238865015 is about 1308.2054979790.

The spelling of 2238865015 in words is "two billion, two hundred thirty-eight million, eight hundred sixty-five thousand, fifteen".