444066464 has 12 divisors (see below), whose sum is σ = 874255914. Its totient is φ = 222033216.

The previous prime is 444066431. The next prime is 444066487. The reversal of 444066464 is 464660444.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 441840400 + 2226064 = 21020^2 + 1492^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6938507 + ... + 6938570.

Almost surely, 2^444066464 is an apocalyptic number.

It is an amenable number.

444066464 is a deficient number, since it is larger than the sum of its proper divisors (430189450).

444066464 is a wasteful number, since it uses less digits than its factorization.

444066464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13877087 (or 13877079 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The square root of 444066464 is about 21072.8845676144. The cubic root of 444066464 is about 762.9264272117.

The spelling of 444066464 in words is "four hundred forty-four million, sixty-six thousand, four hundred sixty-four".