1659374448 has 80 divisors (see below), whose sum is σ = 4453810176. Its totient is φ = 531797760.

The previous prime is 1659374413. The next prime is 1659374489. The reversal of 1659374448 is 8444739561.

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 1659374448.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230065 + ... + 237167.

Almost surely, 2^1659374448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1659374448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2226905088).

1659374448 is an abundant number, since it is smaller than the sum of its proper divisors (2794435728).

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

1659374448 is a wasteful number, since it uses less digits than its factorization.

1659374448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7302 (or 7296 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 1659374448 is about 40735.4200665711. The cubic root of 1659374448 is about 1183.8993971924.

The spelling of 1659374448 in words is "one billion, six hundred fifty-nine million, three hundred seventy-four thousand, four hundred forty-eight".