1442888731446 has 8 divisors (see below), whose sum is σ = 2885777462904. Its totient is φ = 480962910480.

The previous prime is 1442888731379. The next prime is 1442888731499. The reversal of 1442888731446 is 6441378882441.

It is a happy number.

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

1442888731446 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442888731446.

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, 120240727615 + ... + 120240727626.

It is an arithmetic number, because the mean of its divisors is an integer number (360722182863).

Almost surely, 2^{1442888731446} is an apocalyptic number.

1442888731446 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.

1442888731446 is a wasteful number, since it uses less digits than its factorization.

1442888731446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240481455246.

The product of its digits is 33030144, while the sum is 60.

The spelling of 1442888731446 in words is "one trillion, four hundred forty-two billion, eight hundred eighty-eight million, seven hundred thirty-one thousand, four hundred forty-six".