444366666 has 12 divisors (see below), whose sum is σ = 962794482. Its totient is φ = 148122216.

The previous prime is 444366619. The next prime is 444366667. The reversal of 444366666 is 666663444.

It can be written as a sum of positive squares in only one way, i.e., 314885025 + 129481641 = 17745^2 + 11379^2 .

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 not an unprimeable number, because it can be changed into a prime (444366667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12343501 + ... + 12343536.

Almost surely, 2^444366666 is an apocalyptic number.

444366666 is an abundant number, since it is smaller than the sum of its proper divisors (518427816).

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

444366666 is a wasteful number, since it uses less digits than its factorization.

444366666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24687045 (or 24687042 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The square root of 444366666 is about 21080.0063092970. The cubic root of 444366666 is about 763.0983087252.

The spelling of 444366666 in words is "four hundred forty-four million, three hundred sixty-six thousand, six hundred sixty-six".