20934968 has 16 divisors (see below), whose sum is σ = 40960080. Its totient is φ = 10012288.

The previous prime is 20934961. The next prime is 20935009. The reversal of 20934968 is 86943902.

It is a happy number.

It is a super-2 number, since 2×20934968² = 876545770322048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934961) 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, 56705 + ... + 57072.

It is an arithmetic number, because the mean of its divisors is an integer number (2560005).

Almost surely, 2^20934968 is an apocalyptic number.

It is an amenable number.

20934968 is a deficient number, since it is larger than the sum of its proper divisors (20025112).

20934968 is a wasteful number, since it uses less digits than its factorization.

20934968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113806 (or 113802 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 20934968 is about 4575.4746201897. The cubic root of 20934968 is about 275.6073321117.

The spelling of 20934968 in words is "twenty million, nine hundred thirty-four thousand, nine hundred sixty-eight".