1144412240 has 80 divisors (see below), whose sum is σ = 2720206848. Its totient is φ = 447648768.

The previous prime is 1144412177. The next prime is 1144412251. The reversal of 1144412240 is 422144411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740909 + ... + 742451.

Almost surely, 2^1144412240 is an apocalyptic number.

1144412240 is a gapful number since it is divisible by the number (10) 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 1144412240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360103424).

1144412240 is an abundant number, since it is smaller than the sum of its proper divisors (1575794608).

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

1144412240 is a wasteful number, since it uses less digits than its factorization.

1144412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1144412240 is about 33829.1625672289. The cubic root of 1144412240 is about 1045.9899168769.

Adding to 1144412240 its reverse (422144411), we get a palindrome (1566556651).

The spelling of 1144412240 in words is "one billion, one hundred forty-four million, four hundred twelve thousand, two hundred forty".