9944390 has 32 divisors (see below), whose sum is σ = 18895680. Its totient is φ = 3762304.

The previous prime is 9944387. The next prime is 9944393. The reversal of 9944390 is 934499.

It is an interprime number because it is at equal distance from previous prime (9944387) and next prime (9944393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9944393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15047 + ... + 15693.

It is an arithmetic number, because the mean of its divisors is an integer number (590490).

Almost surely, 2^9944390 is an apocalyptic number.

9944390 is a deficient number, since it is larger than the sum of its proper divisors (8951290).

9944390 is a wasteful number, since it uses less digits than its factorization.

9944390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 9944390 is about 3153.4726889574. The cubic root of 9944390 is about 215.0433660496.

The spelling of 9944390 in words is "nine million, nine hundred forty-four thousand, three hundred ninety".