538181934 has 32 divisors (see below), whose sum is σ = 1090246176. Its totient is φ = 177091200.

The previous prime is 538181933. The next prime is 538181939. The reversal of 538181934 is 439181835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538181933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239464 + ... + 241700.

It is an arithmetic number, because the mean of its divisors is an integer number (34070193).

Almost surely, 2^538181934 is an apocalyptic number.

538181934 is an abundant number, since it is smaller than the sum of its proper divisors (552064242).

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

538181934 is a wasteful number, since it uses less digits than its factorization.

538181934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740.

The product of its digits is 103680, while the sum is 42.

The square root of 538181934 is about 23198.7485438331. The cubic root of 538181934 is about 813.4103703270.

Subtracting from 538181934 its reverse (439181835), we obtain a palindrome (99000099).

The spelling of 538181934 in words is "five hundred thirty-eight million, one hundred eighty-one thousand, nine hundred thirty-four".