1144321236 has 24 divisors (see below), whose sum is σ = 2966759040. Its totient is φ = 381440376.

The previous prime is 1144321229. The next prime is 1144321307. The reversal of 1144321236 is 6321234411.

It is a happy number.

1144321236 is a `hidden beast` number, since 1 + 1 + 443 + 212 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5297676 + ... + 5297891.

It is an arithmetic number, because the mean of its divisors is an integer number (123614960).

Almost surely, 2^1144321236 is an apocalyptic number.

It is an amenable number.

1144321236 is an abundant number, since it is smaller than the sum of its proper divisors (1822437804).

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

1144321236 is a wasteful number, since it uses less digits than its factorization.

1144321236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10595580 (or 10595572 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1144321236 is about 33827.8174879787. The cubic root of 1144321236 is about 1045.9621903327.

Adding to 1144321236 its reverse (6321234411), we get a palindrome (7465555647).

The spelling of 1144321236 in words is "one billion, one hundred forty-four million, three hundred twenty-one thousand, two hundred thirty-six".