234881136 has 120 divisors (see below), whose sum is σ = 768859520. Its totient is φ = 65536128.

The previous prime is 234881131. The next prime is 234881161. The reversal of 234881136 is 631188432.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 234881136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234881131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40635 + ... + 46053.

Almost surely, 2^234881136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234881136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384429760).

234881136 is an abundant number, since it is smaller than the sum of its proper divisors (533978384).

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

234881136 is a wasteful number, since it uses less digits than its factorization.

234881136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483 (or 5474 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 234881136 is about 15325.8323101879. The cubic root of 234881136 is about 616.9965176978.

The spelling of 234881136 in words is "two hundred thirty-four million, eight hundred eighty-one thousand, one hundred thirty-six".