1244532144 has 40 divisors (see below), whose sum is σ = 3289815232. Its totient is φ = 405195840.

The previous prime is 1244532143. The next prime is 1244532151. The reversal of 1244532144 is 4412354421.

It is not an unprimeable number, because it can be changed into a prime (1244532143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299422 + ... + 303549.

Almost surely, 2^1244532144 is an apocalyptic number.

It is an amenable number.

1244532144 is an abundant number, since it is smaller than the sum of its proper divisors (2045283088).

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

1244532144 is a wasteful number, since it uses less digits than its factorization.

1244532144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603025 (or 603019 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 1244532144 is about 35277.9271499900. The cubic root of 1244532144 is about 1075.6443640732.

Adding to 1244532144 its reverse (4412354421), we get a palindrome (5656886565).

The spelling of 1244532144 in words is "one billion, two hundred forty-four million, five hundred thirty-two thousand, one hundred forty-four".