4418187138 has 24 divisors (see below), whose sum is σ = 9600181500. Its totient is φ = 1468507104.

The previous prime is 4418187133. The next prime is 4418187167. The reversal of 4418187138 is 8317818144.

It can be written as a sum of positive squares in 2 ways, for example, as 3679271649 + 738915489 = 60657^2 + 27183^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4418187093 and 4418187102.

It is not an unprimeable number, because it can be changed into a prime (4418187133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345373 + ... + 357936.

Almost surely, 2^4418187138 is an apocalyptic number.

4418187138 is an abundant number, since it is smaller than the sum of its proper divisors (5181994362).

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

4418187138 is a wasteful number, since it uses less digits than its factorization.

4418187138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703666 (or 703663 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 4418187138 is about 66469.4451458713. The cubic root of 4418187138 is about 1640.8971813653.

The spelling of 4418187138 in words is "four billion, four hundred eighteen million, one hundred eighty-seven thousand, one hundred thirty-eight".