2174268138 has 16 divisors (see below), whose sum is σ = 4969755840. Its totient is φ = 621219456.

The previous prime is 2174268137. The next prime is 2174268139. The reversal of 2174268138 is 8318624712.

It is an interprime number because it is at equal distance from previous prime (2174268137) and next prime (2174268139).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 51768289 = 2174268138 / (2 + 1 + 7 + 4 + 2 + 6 + 8 + 1 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 2174268138.

It is not an unprimeable number, because it can be changed into a prime (2174268137) 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, 25884103 + ... + 25884186.

It is an arithmetic number, because the mean of its divisors is an integer number (310609740).

Almost surely, 2^2174268138 is an apocalyptic number.

2174268138 is an abundant number, since it is smaller than the sum of its proper divisors (2795487702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2174268138 is a wasteful number, since it uses less digits than its factorization.

2174268138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51768301.

The product of its digits is 129024, while the sum is 42.

The square root of 2174268138 is about 46629.0482210392. The cubic root of 2174268138 is about 1295.5008449167.

The spelling of 2174268138 in words is "two billion, one hundred seventy-four million, two hundred sixty-eight thousand, one hundred thirty-eight".