444254644 has 6 divisors (see below), whose sum is σ = 777445634. Its totient is φ = 222127320.

The previous prime is 444254621. The next prime is 444254651. The reversal of 444254644 is 446452444.

It can be written as a sum of positive squares in only one way, i.e., 442260900 + 1993744 = 21030^2 + 1412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55531827 + ... + 55531834.

Almost surely, 2^444254644 is an apocalyptic number.

It is an amenable number.

444254644 is a deficient number, since it is larger than the sum of its proper divisors (333190990).

444254644 is a wasteful number, since it uses less digits than its factorization.

444254644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111063665 (or 111063663 counting only the distinct ones).

The product of its digits is 245760, while the sum is 37.

The square root of 444254644 is about 21077.3490743025. The cubic root of 444254644 is about 763.0341792652.

The spelling of 444254644 in words is "four hundred forty-four million, two hundred fifty-four thousand, six hundred forty-four".