99944444 has 6 divisors (see below), whose sum is σ = 174902784. Its totient is φ = 49972220.

The previous prime is 99944443. The next prime is 99944447. The reversal of 99944444 is 44444999.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99944441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12493052 + ... + 12493059.

It is an arithmetic number, because the mean of its divisors is an integer number (29150464).

Almost surely, 2^99944444 is an apocalyptic number.

It is an amenable number.

99944444 is a deficient number, since it is larger than the sum of its proper divisors (74958340).

99944444 is a wasteful number, since it uses less digits than its factorization.

99944444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24986115 (or 24986113 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 99944444 is about 9997.2218140842. The cubic root of 99944444 is about 464.0729114020.

The spelling of 99944444 in words is "ninety-nine million, nine hundred forty-four thousand, four hundred forty-four".