99938444 has 24 divisors (see below), whose sum is σ = 186425568. Its totient is φ = 46713600.

The previous prime is 99938441. The next prime is 99938477. The reversal of 99938444 is 44483999.

It is a super-2 number, since 2×99938444² = 19975385178282272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99938392 and 99938401.

It is not an unprimeable number, because it can be changed into a prime (99938441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5402 + ... + 15134.

It is an arithmetic number, because the mean of its divisors is an integer number (7767732).

Almost surely, 2^99938444 is an apocalyptic number.

It is an amenable number.

99938444 is a deficient number, since it is larger than the sum of its proper divisors (86487124).

99938444 is a wasteful number, since it uses less digits than its factorization.

99938444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905 (or 9903 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 99938444 is about 9996.9217262115. The cubic root of 99938444 is about 464.0636245987.

The spelling of 99938444 in words is "ninety-nine million, nine hundred thirty-eight thousand, four hundred forty-four".