1444457286 has 20 divisors (see below), whose sum is σ = 3236654652. Its totient is φ = 481485708.

The previous prime is 1444457269. The next prime is 1444457303. The reversal of 1444457286 is 6827544441.

It is an interprime number because it is at equal distance from previous prime (1444457269) and next prime (1444457303).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4458040 + ... + 4458363.

Almost surely, 2^1444457286 is an apocalyptic number.

1444457286 is an abundant number, since it is smaller than the sum of its proper divisors (1792197366).

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

1444457286 is an equidigital number, since it uses as much as digits as its factorization.

1444457286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916417 (or 8916408 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 1444457286 is about 38006.0164447683. The cubic root of 1444457286 is about 1130.4071642074.

The spelling of 1444457286 in words is "one billion, four hundred forty-four million, four hundred fifty-seven thousand, two hundred eighty-six".