1444343320 has 64 divisors (see below), whose sum is σ = 3833856000. Its totient is φ = 479226240.

The previous prime is 1444343309. The next prime is 1444343339. The reversal of 1444343320 is 233434441.

It is a super-2 number, since 2×1444343320² = 4172255252057244800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 74520 + ... + 91879.

It is an arithmetic number, because the mean of its divisors is an integer number (59904000).

Almost surely, 2^1444343320 is an apocalyptic number.

1444343320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444343320 is an abundant number, since it is smaller than the sum of its proper divisors (2389512680).

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

1444343320 is a wasteful number, since it uses less digits than its factorization.

1444343320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166448 (or 166444 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 1444343320 is about 38004.5170999448. The cubic root of 1444343320 is about 1130.3774341553.

Adding to 1444343320 its reverse (233434441), we get a palindrome (1677777761).

The spelling of 1444343320 in words is "one billion, four hundred forty-four million, three hundred forty-three thousand, three hundred twenty".