1444430016 has 56 divisors (see below), whose sum is σ = 4246361840. Its totient is φ = 481476096.

The previous prime is 1444430011. The next prime is 1444430021. The reversal of 1444430016 is 6100344441.

It is an interprime number because it is at equal distance from previous prime (1444430011) and next prime (1444430021).

It is a super-2 number, since 2×1444430016² = 4172756142243520512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1444430011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416221 + ... + 419676.

It is an arithmetic number, because the mean of its divisors is an integer number (75827890).

Almost surely, 2^1444430016 is an apocalyptic number.

1444430016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1444430016 is an abundant number, since it is smaller than the sum of its proper divisors (2801931824).

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

1444430016 is an equidigital number, since it uses as much as digits as its factorization.

1444430016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835918 (or 835902 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1444430016 is about 38005.6576840870. The cubic root of 1444430016 is about 1130.4000504866.

Adding to 1444430016 its reverse (6100344441), we get a palindrome (7544774457).

The spelling of 1444430016 in words is "one billion, four hundred forty-four million, four hundred thirty thousand, sixteen".