4492047789 has 24 divisors (see below), whose sum is σ = 6667508120. Its totient is φ = 2912174208.

The previous prime is 4492047779. The next prime is 4492047793. The reversal of 4492047789 is 9877402944.

It is a happy number.

4492047789 is a `hidden beast` number, since 4 + 4 + 92 + 0 + 477 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 155825289 + 4336222500 = 12483^2 + 65850^2 .

It is not a de Polignac number, because 4492047789 - 2⁵ = 4492047757 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4492047709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1209267 + ... + 1212975.

Almost surely, 2^4492047789 is an apocalyptic number.

It is an amenable number.

4492047789 is a deficient number, since it is larger than the sum of its proper divisors (2175460331).

4492047789 is a wasteful number, since it uses less digits than its factorization.

4492047789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7389 (or 7386 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 4492047789 is about 67022.7408347346. The cubic root of 4492047789 is about 1649.9905465023.

The spelling of 4492047789 in words is "four billion, four hundred ninety-two million, forty-seven thousand, seven hundred eighty-nine".