20264806 has 4 divisors (see below), whose sum is σ = 30397212. Its totient is φ = 10132402.

The previous prime is 20264791. The next prime is 20264809. The reversal of 20264806 is 60846202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066200 + ... + 5066203.

It is an arithmetic number, because the mean of its divisors is an integer number (7599303).

Almost surely, 2^20264806 is an apocalyptic number.

20264806 is a deficient number, since it is larger than the sum of its proper divisors (10132406).

20264806 is a wasteful number, since it uses less digits than its factorization.

20264806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132405.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20264806 is about 4501.6448105109. The cubic root of 20264806 is about 272.6345030805.

The spelling of 20264806 in words is "twenty million, two hundred sixty-four thousand, eight hundred six".