1244110140 has 288 divisors, whose sum is σ = 4684732416. Its totient is φ = 260236800.

The previous prime is 1244110129. The next prime is 1244110193. The reversal of 1244110140 is 410114421.

1244110140 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2473129 + ... + 2473631.

It is an arithmetic number, because the mean of its divisors is an integer number (16266432).

Almost surely, 2^1244110140 is an apocalyptic number.

1244110140 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 1244110140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2342366208).

1244110140 is an abundant number, since it is smaller than the sum of its proper divisors (3440622276).

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

1244110140 is a wasteful number, since it uses less digits than its factorization.

1244110140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1244110140 is about 35271.9455091437. The cubic root of 1244110140 is about 1075.5227715152.

Adding to 1244110140 its reverse (410114421), we get a palindrome (1654224561).

The spelling of 1244110140 in words is "one billion, two hundred forty-four million, one hundred ten thousand, one hundred forty".