444988916 has 6 divisors (see below), whose sum is σ = 778730610. Its totient is φ = 222494456.

The previous prime is 444988913. The next prime is 444988927. The reversal of 444988916 is 619889444.

It can be written as a sum of positive squares in only one way, i.e., 430396516 + 14592400 = 20746^2 + 3820^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444988913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55623611 + ... + 55623618.

It is an arithmetic number, because the mean of its divisors is an integer number (129788435).

Almost surely, 2^444988916 is an apocalyptic number.

It is an amenable number.

444988916 is a deficient number, since it is larger than the sum of its proper divisors (333741694).

444988916 is a wasteful number, since it uses less digits than its factorization.

444988916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111247233 (or 111247231 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 444988916 is about 21094.7603920974. The cubic root of 444988916 is about 763.4543333714.

The spelling of 444988916 in words is "four hundred forty-four million, nine hundred eighty-eight thousand, nine hundred sixteen".