20346366 has 8 divisors (see below), whose sum is σ = 40692744. Its totient is φ = 6782120.

The previous prime is 20346343. The next prime is 20346383. The reversal of 20346366 is 66364302.

It is a sphenic number, since it is the product of 3 distinct primes.

20346366 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1695525 + ... + 1695536.

It is an arithmetic number, because the mean of its divisors is an integer number (5086593).

Almost surely, 2^20346366 is an apocalyptic number.

20346366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20346366 is a wasteful number, since it uses less digits than its factorization.

20346366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391066.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 20346366 is about 4510.6946249996. The cubic root of 20346366 is about 272.9997719007. Note that the first 3 decimals are identical.

The spelling of 20346366 in words is "twenty million, three hundred forty-six thousand, three hundred sixty-six".