1181393248 has 96 divisors (see below), whose sum is σ = 2819577600. Its totient is φ = 475974144.

The previous prime is 1181393233. The next prime is 1181393261. The reversal of 1181393248 is 8423931811.

It is a self number, because there is not a number n which added to its sum of digits gives 1181393248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590586 + ... + 592582.

It is an arithmetic number, because the mean of its divisors is an integer number (29370600).

Almost surely, 2^1181393248 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 1181393248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409788800).

1181393248 is an abundant number, since it is smaller than the sum of its proper divisors (1638184352).

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

1181393248 is a wasteful number, since it uses less digits than its factorization.

1181393248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2164 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 1181393248 is about 34371.4016007494. The cubic root of 1181393248 is about 1057.1375387259.

The spelling of 1181393248 in words is "one billion, one hundred eighty-one million, three hundred ninety-three thousand, two hundred forty-eight".