9994438 has 4 divisors (see below), whose sum is σ = 14991660. Its totient is φ = 4997218.

The previous prime is 9994427. The next prime is 9994441. The reversal of 9994438 is 8344999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8344999 = 13 ⋅641923.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498608 + ... + 2498611.

It is an arithmetic number, because the mean of its divisors is an integer number (3747915).

Almost surely, 2^9994438 is an apocalyptic number.

9994438 is a deficient number, since it is larger than the sum of its proper divisors (4997222).

9994438 is a wasteful number, since it uses less digits than its factorization.

9994438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4997221.

The product of its digits is 279936, while the sum is 46.

The square root of 9994438 is about 3161.3981084324. The cubic root of 9994438 is about 215.4035183763.

The spelling of 9994438 in words is "nine million, nine hundred ninety-four thousand, four hundred thirty-eight".