2238138015 has 16 divisors (see below), whose sum is σ = 3634470528. Its totient is φ = 1175857056.

The previous prime is 2238138011. The next prime is 2238138061. The reversal of 2238138015 is 5108318322.

It is not a de Polignac number, because 2238138015 - 2² = 2238138011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238138011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1112497 + ... + 1114506.

It is an arithmetic number, because the mean of its divisors is an integer number (227154408).

Almost surely, 2^2238138015 is an apocalyptic number.

2238138015 is a deficient number, since it is larger than the sum of its proper divisors (1396332513).

2238138015 is a wasteful number, since it uses less digits than its factorization.

2238138015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227078.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 2238138015 is about 47308.9633684781. The cubic root of 2238138015 is about 1308.0638833138.

It can be divided in two parts, 22381380 and 15, that added together give a triangular number (22381395 = T₆₆₉₀).

The spelling of 2238138015 in words is "two billion, two hundred thirty-eight million, one hundred thirty-eight thousand, fifteen".