20269968 has 20 divisors (see below), whose sum is σ = 52364208. Its totient is φ = 6756640.

The previous prime is 20269961. The next prime is 20269999. The reversal of 20269968 is 86996202.

It is not an unprimeable number, because it can be changed into a prime (20269961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211098 + ... + 211193.

Almost surely, 2^20269968 is an apocalyptic number.

It is an amenable number.

20269968 is an abundant number, since it is smaller than the sum of its proper divisors (32094240).

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

20269968 is a wasteful number, since it uses less digits than its factorization.

20269968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422302 (or 422296 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 20269968 is about 4502.2181199937. The cubic root of 20269968 is about 272.6576502685.

The spelling of 20269968 in words is "twenty million, two hundred sixty-nine thousand, nine hundred sixty-eight".