20326606 has 4 divisors (see below), whose sum is σ = 30489912. Its totient is φ = 10163302.

The previous prime is 20326591. The next prime is 20326627. The reversal of 20326606 is 60662302.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20326606² = 826341822958472, which contains 22 as substring.

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, 5081650 + ... + 5081653.

It is an arithmetic number, because the mean of its divisors is an integer number (7622478).

Almost surely, 2^20326606 is an apocalyptic number.

20326606 is a deficient number, since it is larger than the sum of its proper divisors (10163306).

20326606 is a wasteful number, since it uses less digits than its factorization.

20326606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163305.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20326606 is about 4508.5037429285. The cubic root of 20326606 is about 272.9113658962.

Adding to 20326606 its reverse (60662302), we get a palindrome (80988908).

The spelling of 20326606 in words is "twenty million, three hundred twenty-six thousand, six hundred six".