444145906 has 8 divisors (see below), whose sum is σ = 667108224. Its totient is φ = 221776500.

The previous prime is 444145901. The next prime is 444145909. The reversal of 444145906 is 609541444.

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

It is not an unprimeable number, because it can be changed into a prime (444145901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146350 + ... + 149353.

It is an arithmetic number, because the mean of its divisors is an integer number (83388528).

Almost surely, 2^444145906 is an apocalyptic number.

444145906 is a deficient number, since it is larger than the sum of its proper divisors (222962318).

444145906 is a wasteful number, since it uses less digits than its factorization.

444145906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296456.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 444145906 is about 21074.7694174812. The cubic root of 444145906 is about 762.9719194914.

The spelling of 444145906 in words is "four hundred forty-four million, one hundred forty-five thousand, nine hundred six".