20973368 has 16 divisors (see below), whose sum is σ = 42350280. Its totient is φ = 9679968.

The previous prime is 20973367. The next prime is 20973371. The reversal of 20973368 is 86337902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20973367) 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, 100730 + ... + 100937.

Almost surely, 2^20973368 is an apocalyptic number.

It is an amenable number.

20973368 is an abundant number, since it is smaller than the sum of its proper divisors (21376912).

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

20973368 is a wasteful number, since it uses less digits than its factorization.

20973368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201686 (or 201682 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 20973368 is about 4579.6689836712. The cubic root of 20973368 is about 275.7757402557.

The spelling of 20973368 in words is "twenty million, nine hundred seventy-three thousand, three hundred sixty-eight".