9994940 has 12 divisors (see below), whose sum is σ = 20989416. Its totient is φ = 3997968.

The previous prime is 9994913. The next prime is 9994951. The reversal of 9994940 is 494999.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9994891 and 9994900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249854 + ... + 249893.

It is an arithmetic number, because the mean of its divisors is an integer number (1749118).

Almost surely, 2^9994940 is an apocalyptic number.

It is an amenable number.

9994940 is an abundant number, since it is smaller than the sum of its proper divisors (10994476).

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

9994940 is a wasteful number, since it uses less digits than its factorization.

9994940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499756 (or 499754 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 9994940 is about 3161.4775026876. The cubic root of 9994940 is about 215.4071247407.

The spelling of 9994940 in words is "nine million, nine hundred ninety-four thousand, nine hundred forty".