1144661232 has 320 divisors, whose sum is σ = 3739760640. Its totient is φ = 296524800.

The previous prime is 1144661209. The next prime is 1144661239. The reversal of 1144661232 is 2321664411.

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 1144661232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144661239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8737807 + ... + 8737937.

It is an arithmetic number, because the mean of its divisors is an integer number (11686752).

Almost surely, 2^1144661232 is an apocalyptic number.

1144661232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144661232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869880320).

1144661232 is an abundant number, since it is smaller than the sum of its proper divisors (2595099408).

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

1144661232 is a wasteful number, since it uses less digits than its factorization.

1144661232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 246 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1144661232 is about 33832.8425054709. The cubic root of 1144661232 is about 1046.0657707304.

The spelling of 1144661232 in words is "one billion, one hundred forty-four million, six hundred sixty-one thousand, two hundred thirty-two".