13155842238 has 32 divisors (see below), whose sum is σ = 32804179200. Its totient is φ = 3417101760.

The previous prime is 13155842221. The next prime is 13155842299. The reversal of 13155842238 is 83224855131.

It is a super-2 number, since 2×13155842238² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 13155842238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14237463 + ... + 14238386.

It is an arithmetic number, because the mean of its divisors is an integer number (1025130600).

Almost surely, 2^13155842238 is an apocalyptic number.

13155842238 is an abundant number, since it is smaller than the sum of its proper divisors (19648336962).

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

13155842238 is a wasteful number, since it uses less digits than its factorization.

13155842238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28475872.

The product of its digits is 230400, while the sum is 42.

The spelling of 13155842238 in words is "thirteen billion, one hundred fifty-five million, eight hundred forty-two thousand, two hundred thirty-eight".