4417887138 has 192 divisors, whose sum is σ = 11252183040. Its totient is φ = 1148539392.

The previous prime is 4417887113. The next prime is 4417887139. The reversal of 4417887138 is 8317887144.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (4417887139) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26454331 + ... + 26454497.

It is an arithmetic number, because the mean of its divisors is an integer number (58605120).

Almost surely, 2^4417887138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4417887138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5626091520).

4417887138 is an abundant number, since it is smaller than the sum of its proper divisors (6834295902).

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

4417887138 is a wasteful number, since it uses less digits than its factorization.

4417887138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 342 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 51.

The square root of 4417887138 is about 66467.1884315863. The cubic root of 4417887138 is about 1640.8600409213.

The spelling of 4417887138 in words is "four billion, four hundred seventeen million, eight hundred eighty-seven thousand, one hundred thirty-eight".