1149943824 has 80 divisors (see below), whose sum is σ = 3309163200. Its totient is φ = 382339584.

The previous prime is 1149943819. The next prime is 1149943841. The reversal of 1149943824 is 4283499411.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1149943824.

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, 177832 + ... + 184184.

It is an arithmetic number, because the mean of its divisors is an integer number (41364540).

Almost surely, 2^1149943824 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 1149943824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654581600).

1149943824 is an abundant number, since it is smaller than the sum of its proper divisors (2159219376).

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

1149943824 is a wasteful number, since it uses less digits than its factorization.

1149943824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789 (or 6777 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1149943824 is about 33910.8216355782. The cubic root of 1149943824 is about 1047.6724934712.

The spelling of 1149943824 in words is "one billion, one hundred forty-nine million, nine hundred forty-three thousand, eight hundred twenty-four".