444145446 has 12 divisors (see below), whose sum is σ = 962315172. Its totient is φ = 148048476.

The previous prime is 444145439. The next prime is 444145477. The reversal of 444145446 is 644541444.

It is a self number, because there is not a number n which added to its sum of digits gives 444145446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12337356 + ... + 12337391.

It is an arithmetic number, because the mean of its divisors is an integer number (80192931).

Almost surely, 2^444145446 is an apocalyptic number.

444145446 is an abundant number, since it is smaller than the sum of its proper divisors (518169726).

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

444145446 is a wasteful number, since it uses less digits than its factorization.

444145446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24674755 (or 24674752 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

The square root of 444145446 is about 21074.7585039544. The cubic root of 444145446 is about 762.9716560890.

The spelling of 444145446 in words is "four hundred forty-four million, one hundred forty-five thousand, four hundred forty-six".