20364506 has 8 divisors (see below), whose sum is σ = 30565920. Its totient is φ = 10175868.

The previous prime is 20364503. The next prime is 20364511. The reversal of 20364506 is 60546302.

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

It is not an unprimeable number, because it can be changed into a prime (20364503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4505 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (3820740).

Almost surely, 2^20364506 is an apocalyptic number.

20364506 is a deficient number, since it is larger than the sum of its proper divisors (10201414).

20364506 is a wasteful number, since it uses less digits than its factorization.

20364506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20364506 is about 4512.7049537943. The cubic root of 20364506 is about 273.0808796664.

The spelling of 20364506 in words is "twenty million, three hundred sixty-four thousand, five hundred six".