1444809936 has 60 divisors (see below), whose sum is σ = 3797198432. Its totient is φ = 473385792.

The previous prime is 1444809931. The next prime is 1444809937. The reversal of 1444809936 is 6399084441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444809931) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 162765 + ... + 171411.

Almost surely, 2^1444809936 is an apocalyptic number.

1444809936 is a gapful number since it is divisible by the number (16) 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 1444809936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898599216).

1444809936 is an abundant number, since it is smaller than the sum of its proper divisors (2352388496).

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

1444809936 is an equidigital number, since it uses as much as digits as its factorization.

1444809936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8776 (or 8711 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 1444809936 is about 38010.6555586720. The cubic root of 1444809936 is about 1130.4991493087.

The spelling of 1444809936 in words is "one billion, four hundred forty-four million, eight hundred nine thousand, nine hundred thirty-six".