1144343340 has 108 divisors (see below), whose sum is σ = 3971223984. Its totient is φ = 261289728.

The previous prime is 1144343339. The next prime is 1144343341. The reversal of 1144343340 is 433434411.

It is an interprime number because it is at equal distance from previous prime (1144343339) and next prime (1144343341).

It is not an unprimeable number, because it can be changed into a prime (1144343341) 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 35 ways as a sum of consecutive naturals, for example, 1200304 + ... + 1201256.

Almost surely, 2^1144343340 is an apocalyptic number.

1144343340 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 1144343340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1985611992).

1144343340 is an abundant number, since it is smaller than the sum of its proper divisors (2826880644).

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

1144343340 is an equidigital number, since it uses as much as digits as its factorization.

1144343340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 1144343340 is about 33828.1441997636. The cubic root of 1144343340 is about 1045.9689249799.

Adding to 1144343340 its reverse (433434411), we get a palindrome (1577777751).

The spelling of 1144343340 in words is "one billion, one hundred forty-four million, three hundred forty-three thousand, three hundred forty".