1444721532 has 48 divisors (see below), whose sum is σ = 3447316992. Its totient is φ = 470701440.

The previous prime is 1444721527. The next prime is 1444721539. The reversal of 1444721532 is 2351274441.

It is a junction number, because it is equal to n+sod(n) for n = 1444721493 and 1444721502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444721539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632232 + ... + 634512.

It is an arithmetic number, because the mean of its divisors is an integer number (71819104).

Almost surely, 2^1444721532 is an apocalyptic number.

1444721532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1444721532 is an abundant number, since it is smaller than the sum of its proper divisors (2002595460).

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

1444721532 is a wasteful number, since it uses less digits than its factorization.

1444721532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458 (or 3456 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 1444721532 is about 38009.4926564404. The cubic root of 1444721532 is about 1130.4760914465.

Adding to 1444721532 its reverse (2351274441), we get a palindrome (3795995973).

The spelling of 1444721532 in words is "one billion, four hundred forty-four million, seven hundred twenty-one thousand, five hundred thirty-two".