1444545320 has 16 divisors (see below), whose sum is σ = 3250227060. Its totient is φ = 577818112.

The previous prime is 1444545317. The next prime is 1444545353. The reversal of 1444545320 is 235454441.

It can be written as a sum of positive squares in 2 ways, for example, as 1323940996 + 120604324 = 36386^2 + 10982^2 .

It is a super-2 number, since 2×1444545320² = 4173422363067804800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18056777 + ... + 18056856.

Almost surely, 2^1444545320 is an apocalyptic number.

1444545320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444545320 is an abundant number, since it is smaller than the sum of its proper divisors (1805681740).

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

1444545320 is a wasteful number, since it uses less digits than its factorization.

1444545320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36113644 (or 36113640 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 1444545320 is about 38007.1745858594. The cubic root of 1444545320 is about 1130.4301283669.

Adding to 1444545320 its reverse (235454441), we get a palindrome (1679999761).

The spelling of 1444545320 in words is "one billion, four hundred forty-four million, five hundred forty-five thousand, three hundred twenty".