444636924394 has 16 divisors (see below), whose sum is σ = 735778176840. Its totient is φ = 200211747840.

The previous prime is 444636924379. The next prime is 444636924461. The reversal of 444636924394 is 493429636444.

It can be written as a sum of positive squares in 4 ways, for example, as 90567893025 + 354069031369 = 300945^2 + 595037^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208552839 + ... + 208554970.

Almost surely, 2^444636924394 is an apocalyptic number.

444636924394 is a deficient number, since it is larger than the sum of its proper divisors (291141252446).

444636924394 is a wasteful number, since it uses less digits than its factorization.

444636924394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417107865.

The product of its digits is 53747712, while the sum is 58.

The spelling of 444636924394 in words is "four hundred forty-four billion, six hundred thirty-six million, nine hundred twenty-four thousand, three hundred ninety-four".