4452391788 has 24 divisors (see below), whose sum is σ = 11188061808. Its totient is φ = 1369966656.

The previous prime is 4452391777. The next prime is 4452391793. The reversal of 4452391788 is 8871932544.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4452391788.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14270331 + ... + 14270642.

It is an arithmetic number, because the mean of its divisors is an integer number (466169242).

Almost surely, 2^4452391788 is an apocalyptic number.

It is an amenable number.

4452391788 is an abundant number, since it is smaller than the sum of its proper divisors (6735670020).

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

4452391788 is a wasteful number, since it uses less digits than its factorization.

4452391788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28540993 (or 28540991 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 4452391788 is about 66726.2451213913. The cubic root of 4452391788 is about 1645.1207910735.

The spelling of 4452391788 in words is "four billion, four hundred fifty-two million, three hundred ninety-one thousand, seven hundred eighty-eight".