1444631244 has 48 divisors (see below), whose sum is σ = 3854366208. Its totient is φ = 412535808.

The previous prime is 1444631239. The next prime is 1444631263. The reversal of 1444631244 is 4421364441.

It is a super-2 number, since 2×1444631244² = 4173918862281975072, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 228129 + ... + 234375.

It is an arithmetic number, because the mean of its divisors is an integer number (80299296).

Almost surely, 2^1444631244 is an apocalyptic number.

1444631244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1444631244 is an abundant number, since it is smaller than the sum of its proper divisors (2409734964).

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

1444631244 is a wasteful number, since it uses less digits than its factorization.

1444631244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014 (or 9012 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 1444631244 is about 38008.3049345798. The cubic root of 1444631244 is about 1130.4525412215.

Adding to 1444631244 its reverse (4421364441), we get a palindrome (5865995685).

The spelling of 1444631244 in words is "one billion, four hundred forty-four million, six hundred thirty-one thousand, two hundred forty-four".