1444331886 has 8 divisors (see below), whose sum is σ = 2888663784. Its totient is φ = 481443960.

The previous prime is 1444331879. The next prime is 1444331923. The reversal of 1444331886 is 6881334441.

It is a sphenic number, since it is the product of 3 distinct primes.

1444331886 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120360985 + ... + 120360996.

It is an arithmetic number, because the mean of its divisors is an integer number (361082973).

Almost surely, 2^1444331886 is an apocalyptic number.

1444331886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1444331886 is a wasteful number, since it uses less digits than its factorization.

1444331886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240721986.

The product of its digits is 221184, while the sum is 42.

The square root of 1444331886 is about 38004.3666701604. The cubic root of 1444331886 is about 1130.3744513073.

The spelling of 1444331886 in words is "one billion, four hundred forty-four million, three hundred thirty-one thousand, eight hundred eighty-six".