20933708 has 12 divisors (see below), whose sum is σ = 37897440. Its totient is φ = 10105872.

The previous prime is 20933707. The next prime is 20933719. The reversal of 20933708 is 80733902.

It is not an unprimeable number, because it can be changed into a prime (20933701) 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, 90116 + ... + 90347.

It is an arithmetic number, because the mean of its divisors is an integer number (3158120).

Almost surely, 2^20933708 is an apocalyptic number.

It is an amenable number.

20933708 is a deficient number, since it is larger than the sum of its proper divisors (16963732).

20933708 is a wasteful number, since it uses less digits than its factorization.

20933708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180496 (or 180494 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 20933708 is about 4575.3369274841. The cubic root of 20933708 is about 275.6018027313.

The spelling of 20933708 in words is "twenty million, nine hundred thirty-three thousand, seven hundred eight".