1244322312 has 32 divisors (see below), whose sum is σ = 3274533600. Its totient is φ = 392943744.

The previous prime is 1244322311. The next prime is 1244322341. The reversal of 1244322312 is 2132234421.

It is a happy number.

It is a super-2 number, since 2×1244322312² = 3096676032282050688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1244322311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363933 + ... + 1364844.

It is an arithmetic number, because the mean of its divisors is an integer number (102329175).

Almost surely, 2^1244322312 is an apocalyptic number.

1244322312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1244322312 is an abundant number, since it is smaller than the sum of its proper divisors (2030211288).

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

1244322312 is a wasteful number, since it uses less digits than its factorization.

1244322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728805 (or 2728801 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 1244322312 is about 35274.9530403656. The cubic root of 1244322312 is about 1075.5839083441.

Adding to 1244322312 its reverse (2132234421), we get a palindrome (3376556733).

The spelling of 1244322312 in words is "one billion, two hundred forty-four million, three hundred twenty-two thousand, three hundred twelve".