9742818 has 16 divisors (see below), whose sum is σ = 19900800. Its totient is φ = 3178416.

The previous prime is 9742813. The next prime is 9742829. The reversal of 9742818 is 8182479.

It is a super-2 number, since 2×9742818² = 189845005162248, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9742813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16993 + ... + 17556.

It is an arithmetic number, because the mean of its divisors is an integer number (1243800).

Almost surely, 2^9742818 is an apocalyptic number.

9742818 is an abundant number, since it is smaller than the sum of its proper divisors (10157982).

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

9742818 is a wasteful number, since it uses less digits than its factorization.

9742818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34601.

The product of its digits is 32256, while the sum is 39.

The square root of 9742818 is about 3121.3487469362. The cubic root of 9742818 is about 213.5804660979.

The spelling of 9742818 in words is "nine million, seven hundred forty-two thousand, eight hundred eighteen".