1145248884 has 72 divisors (see below), whose sum is σ = 3121870752. Its totient is φ = 351904320.

The previous prime is 1145248873. The next prime is 1145248891. The reversal of 1145248884 is 4888425411.

1145248884 is a `hidden beast` number, since 114 + 52 + 488 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509467 + ... + 511709.

It is an arithmetic number, because the mean of its divisors is an integer number (43359316).

Almost surely, 2^1145248884 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 1145248884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1560935376).

1145248884 is an abundant number, since it is smaller than the sum of its proper divisors (1976621868).

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

1145248884 is a wasteful number, since it uses less digits than its factorization.

1145248884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357 (or 3352 counting only the distinct ones).

The product of its digits is 327680, while the sum is 45.

The square root of 1145248884 is about 33841.5260294213. The cubic root of 1145248884 is about 1046.2447516255.

The spelling of 1145248884 in words is "one billion, one hundred forty-five million, two hundred forty-eight thousand, eight hundred eighty-four".