1152272784 has 160 divisors (see below), whose sum is σ = 3573521280. Its totient is φ = 316071936.

The previous prime is 1152272783. The next prime is 1152272789. The reversal of 1152272784 is 4872722511.

It is a super-2 number, since 2×1152272784² = 2655465137494221312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1152272783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198694 + ... + 204410.

It is an arithmetic number, because the mean of its divisors is an integer number (22334508).

Almost surely, 2^1152272784 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 1152272784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786760640).

1152272784 is an abundant number, since it is smaller than the sum of its proper divisors (2421248496).

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

1152272784 is a wasteful number, since it uses less digits than its factorization.

1152272784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777 (or 5771 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 1152272784 is about 33945.1437469338. The cubic root of 1152272784 is about 1048.3792937832.

The spelling of 1152272784 in words is "one billion, one hundred fifty-two million, two hundred seventy-two thousand, seven hundred eighty-four".