444661442 has 4 divisors (see below), whose sum is σ = 666992166. Its totient is φ = 222330720.

The previous prime is 444661429. The next prime is 444661453. The reversal of 444661442 is 244166444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 403969801 + 40691641 = 20099^2 + 6379^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111165359 + ... + 111165362.

Almost surely, 2^444661442 is an apocalyptic number.

444661442 is a deficient number, since it is larger than the sum of its proper divisors (222330724).

444661442 is a wasteful number, since it uses less digits than its factorization.

444661442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222330723.

The product of its digits is 73728, while the sum is 35.

The square root of 444661442 is about 21086.9969886658. The cubic root of 444661442 is about 763.2670082573.

The spelling of 444661442 in words is "four hundred forty-four million, six hundred sixty-one thousand, four hundred forty-two".