9942894 has 24 divisors (see below), whose sum is σ = 23200632. Its totient is φ = 3059280.

The previous prime is 9942893. The next prime is 9942917. The reversal of 9942894 is 4982499.

It is a super-2 number, since 2×9942894² = 197722282190472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21012 + ... + 21479.

It is an arithmetic number, because the mean of its divisors is an integer number (966693).

Almost surely, 2^9942894 is an apocalyptic number.

9942894 is an abundant number, since it is smaller than the sum of its proper divisors (13257738).

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

9942894 is a wasteful number, since it uses less digits than its factorization.

9942894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42512 (or 42509 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 9942894 is about 3153.2354812161. The cubic root of 9942894 is about 215.0325820461.

The spelling of 9942894 in words is "nine million, nine hundred forty-two thousand, eight hundred ninety-four".