444359978 has 4 divisors (see below), whose sum is σ = 666539970. Its totient is φ = 222179988.

The previous prime is 444359963. The next prime is 444359987. The reversal of 444359978 is 879953444.

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., 335512489 + 108847489 = 18317^2 + 10433^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111089993 + ... + 111089996.

Almost surely, 2^444359978 is an apocalyptic number.

444359978 is a deficient number, since it is larger than the sum of its proper divisors (222179992).

444359978 is a wasteful number, since it uses less digits than its factorization.

444359978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222179991.

The product of its digits is 4354560, while the sum is 53.

The square root of 444359978 is about 21079.8476749715. The cubic root of 444359978 is about 763.0944803349.

The spelling of 444359978 in words is "four hundred forty-four million, three hundred fifty-nine thousand, nine hundred seventy-eight".