1444315500 has 144 divisors (see below), whose sum is σ = 4582695936. Its totient is φ = 382924800.

The previous prime is 1444315469. The next prime is 1444315511. The reversal of 1444315500 is 55134441.

It is a happy number.

1444315500 is a `hidden beast` number, since 144 + 4 + 3 + 15 + 500 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 867669 + ... + 869331.

Almost surely, 2^1444315500 is an apocalyptic number.

1444315500 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 1444315500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2291347968).

1444315500 is an abundant number, since it is smaller than the sum of its proper divisors (3138380436).

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

1444315500 is a wasteful number, since it uses less digits than its factorization.

1444315500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1444315500 is about 38004.1510890587. The cubic root of 1444315500 is about 1130.3701765774.

Adding to 1444315500 its reverse (55134441), we get a palindrome (1499449941).

The spelling of 1444315500 in words is "one billion, four hundred forty-four million, three hundred fifteen thousand, five hundred".