9930444 has 12 divisors (see below), whose sum is σ = 23171064. Its totient is φ = 3310144.

The previous prime is 9930443. The next prime is 9930461. The reversal of 9930444 is 4440399.

It is a happy number.

9930444 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9930444² = 197227436074272, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9930443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413757 + ... + 413780.

It is an arithmetic number, because the mean of its divisors is an integer number (1930922).

Almost surely, 2^9930444 is an apocalyptic number.

It is an amenable number.

9930444 is an abundant number, since it is smaller than the sum of its proper divisors (13240620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9930444 is a wasteful number, since it uses less digits than its factorization.

9930444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827544 (or 827542 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 9930444 is about 3151.2607001008. The cubic root of 9930444 is about 214.9427935055.

The spelling of 9930444 in words is "nine million, nine hundred thirty thousand, four hundred forty-four".