20364668 has 12 divisors (see below), whose sum is σ = 35971992. Its totient is φ = 10086960.

The previous prime is 20364661. The next prime is 20364697. The reversal of 20364668 is 86646302.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364661) 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, 23363 + ... + 24218.

It is an arithmetic number, because the mean of its divisors is an integer number (2997666).

Almost surely, 2^20364668 is an apocalyptic number.

It is an amenable number.

20364668 is a deficient number, since it is larger than the sum of its proper divisors (15607324).

20364668 is a wasteful number, since it uses less digits than its factorization.

20364668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47692 (or 47690 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 20364668 is about 4512.7229030819. The cubic root of 20364668 is about 273.0816037855.

The spelling of 20364668 in words is "twenty million, three hundred sixty-four thousand, six hundred sixty-eight".