1444857330 has 32 divisors (see below), whose sum is σ = 3963037824. Its totient is φ = 330253056.

The previous prime is 1444857311. The next prime is 1444857361. The reversal of 1444857330 is 337584441.

It is a super-2 number, since 2×1444857330² = 4175225408109457800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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, 3439927 + ... + 3440346.

It is an arithmetic number, because the mean of its divisors is an integer number (123844932).

Almost surely, 2^1444857330 is an apocalyptic number.

1444857330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444857330 is an abundant number, since it is smaller than the sum of its proper divisors (2518180494).

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

1444857330 is a wasteful number, since it uses less digits than its factorization.

1444857330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6880290.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 1444857330 is about 38011.2789840068. The cubic root of 1444857330 is about 1130.5115104020.

The spelling of 1444857330 in words is "one billion, four hundred forty-four million, eight hundred fifty-seven thousand, three hundred thirty".