8541237438 has 12 divisors (see below), whose sum is σ = 18506014488. Its totient is φ = 2847079140.

The previous prime is 8541237431. The next prime is 8541237451. The reversal of 8541237438 is 8347321458.

8541237438 is a `hidden beast` number, since 8 + 541 + 2 + 3 + 74 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 8541237393 and 8541237402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8541237431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237256578 + ... + 237256613.

It is an arithmetic number, because the mean of its divisors is an integer number (1542167874).

Almost surely, 2^8541237438 is an apocalyptic number.

8541237438 is an abundant number, since it is smaller than the sum of its proper divisors (9964777050).

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

8541237438 is a wasteful number, since it uses less digits than its factorization.

8541237438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474513199 (or 474513196 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 8541237438 is about 92418.8153895082. The cubic root of 8541237438 is about 2044.1225614664.

The spelling of 8541237438 in words is "eight billion, five hundred forty-one million, two hundred thirty-seven thousand, four hundred thirty-eight".