9618426 has 36 divisors (see below), whose sum is σ = 21669882. Its totient is φ = 3201768.

The previous prime is 9618403. The next prime is 9618431. The reversal of 9618426 is 6248169.

It can be written as a sum of positive squares in only one way, i.e., 5517801 + 4100625 = 2349^2 + 2025^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12756 + ... + 13488.

Almost surely, 2^9618426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9618426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10834941).

9618426 is an abundant number, since it is smaller than the sum of its proper divisors (12051456).

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

9618426 is an frugal number, since it uses more digits than its factorization.

9618426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 738 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 9618426 is about 3101.3587344904. The cubic root of 9618426 is about 212.6676029523.

The spelling of 9618426 in words is "nine million, six hundred eighteen thousand, four hundred twenty-six".