4491259138 has 16 divisors (see below), whose sum is σ = 7180424064. Its totient is φ = 2099534400.

The previous prime is 4491259133. The next prime is 4491259271. The reversal of 4491259138 is 8319521944.

It is not an unprimeable number, because it can be changed into a prime (4491259133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432270 + ... + 442537.

It is an arithmetic number, because the mean of its divisors is an integer number (448776504).

Almost surely, 2^4491259138 is an apocalyptic number.

4491259138 is a deficient number, since it is larger than the sum of its proper divisors (2689164926).

4491259138 is a wasteful number, since it uses less digits than its factorization.

4491259138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874977.

The product of its digits is 311040, while the sum is 46.

The square root of 4491259138 is about 67016.8571181908. The cubic root of 4491259138 is about 1649.8939800872.

The spelling of 4491259138 in words is "four billion, four hundred ninety-one million, two hundred fifty-nine thousand, one hundred thirty-eight".