872274138 has 16 divisors (see below), whose sum is σ = 1746160416. Its totient is φ = 290489360.

The previous prime is 872274133. The next prime is 872274157. The reversal of 872274138 is 831472278.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 872274138.

It is not an unprimeable number, because it can be changed into a prime (872274133) 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, 60081 + ... + 73172.

It is an arithmetic number, because the mean of its divisors is an integer number (109135026).

Almost surely, 2^872274138 is an apocalyptic number.

872274138 is an abundant number, since it is smaller than the sum of its proper divisors (873886278).

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

872274138 is a wasteful number, since it uses less digits than its factorization.

872274138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134349.

The product of its digits is 150528, while the sum is 42.

The square root of 872274138 is about 29534.2874977542. The cubic root of 872274138 is about 955.4713417571.

The spelling of 872274138 in words is "eight hundred seventy-two million, two hundred seventy-four thousand, one hundred thirty-eight".