1320792448 has 64 divisors (see below), whose sum is σ = 2859264000. Its totient is φ = 605422080.

The previous prime is 1320792433. The next prime is 1320792461. The reversal of 1320792448 is 8442970231.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1320792448.

It is a congruent number.

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, 66633 + ... + 84151.

It is an arithmetic number, because the mean of its divisors is an integer number (44676000).

Almost surely, 2^1320792448 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 1320792448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429632000).

1320792448 is an abundant number, since it is smaller than the sum of its proper divisors (1538471552).

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

1320792448 is a wasteful number, since it uses less digits than its factorization.

1320792448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17583 (or 17571 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1320792448 is about 36342.7083195515. The cubic root of 1320792448 is about 1097.1807829358.

The spelling of 1320792448 in words is "one billion, three hundred twenty million, seven hundred ninety-two thousand, four hundred forty-eight".