1244961488 has 40 divisors (see below), whose sum is σ = 2520005376. Its totient is φ = 595123200.

The previous prime is 1244961481. The next prime is 1244961511. The reversal of 1244961488 is 8841694421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244961481) 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, 26048 + ... + 56288.

Almost surely, 2^1244961488 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 1244961488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260002688).

1244961488 is an abundant number, since it is smaller than the sum of its proper divisors (1275043888).

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

1244961488 is a wasteful number, since it uses less digits than its factorization.

1244961488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30363 (or 30357 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 1244961488 is about 35284.0117900445. The cubic root of 1244961488 is about 1075.7680433099.

It can be divided in two parts, 12449 and 61488, that added together give a palindrome (73937).

The spelling of 1244961488 in words is "one billion, two hundred forty-four million, nine hundred sixty-one thousand, four hundred eighty-eight".