9944420 has 24 divisors (see below), whose sum is σ = 20966904. Its totient is φ = 3961856.

The previous prime is 9944393. The next prime is 9944423. The reversal of 9944420 is 244499.

It can be written as a sum of positive squares in 4 ways, for example, as 6031936 + 3912484 = 2456^2 + 1978^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9944423) 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, 5012 + ... + 6708.

It is an arithmetic number, because the mean of its divisors is an integer number (873621).

Almost surely, 2^9944420 is an apocalyptic number.

It is an amenable number.

9944420 is an abundant number, since it is smaller than the sum of its proper divisors (11022484).

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

9944420 is a wasteful number, since it uses less digits than its factorization.

9944420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 9944420 is about 3153.4774456146. The cubic root of 9944420 is about 215.0435822952.

The spelling of 9944420 in words is "nine million, nine hundred forty-four thousand, four hundred twenty".