1244334320 has 80 divisors (see below), whose sum is σ = 3150468000. Its totient is φ = 455261184.

The previous prime is 1244334281. The next prime is 1244334337. The reversal of 1244334320 is 234334421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1244334320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29966 + ... + 58194.

It is an arithmetic number, because the mean of its divisors is an integer number (39380850).

Almost surely, 2^1244334320 is an apocalyptic number.

1244334320 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 1244334320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575234000).

1244334320 is an abundant number, since it is smaller than the sum of its proper divisors (1906133680).

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

1244334320 is a wasteful number, since it uses less digits than its factorization.

1244334320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28290 (or 28284 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1244334320 is about 35275.1232457096. The cubic root of 1244334320 is about 1075.5873682114.

Adding to 1244334320 its reverse (234334421), we get a palindrome (1478668741).

The spelling of 1244334320 in words is "one billion, two hundred forty-four million, three hundred thirty-four thousand, three hundred twenty".