1144663530 has 64 divisors (see below), whose sum is σ = 2862563328. Its totient is φ = 292610880.

The previous prime is 1144663529. The next prime is 1144663547. The reversal of 1144663530 is 353664411.

It is a junction number, because it is equal to n+sod(n) for n = 1144663491 and 1144663500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93759 + ... + 105261.

It is an arithmetic number, because the mean of its divisors is an integer number (44727552).

Almost surely, 2^1144663530 is an apocalyptic number.

1144663530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144663530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1431281664).

1144663530 is an abundant number, since it is smaller than the sum of its proper divisors (1717899798).

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

1144663530 is a wasteful number, since it uses less digits than its factorization.

1144663530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1144663530 is about 33832.8764665377. The cubic root of 1144663530 is about 1046.0664707505.

The spelling of 1144663530 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, five hundred thirty".