20924768 has 12 divisors (see below), whose sum is σ = 41195700. Its totient is φ = 10462368.

The previous prime is 20924767. The next prime is 20924777. The reversal of 20924768 is 86742902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20924767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326918 + ... + 326981.

It is an arithmetic number, because the mean of its divisors is an integer number (3432975).

Almost surely, 2^20924768 is an apocalyptic number.

It is an amenable number.

20924768 is a deficient number, since it is larger than the sum of its proper divisors (20270932).

20924768 is an equidigital number, since it uses as much as digits as its factorization.

20924768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653909 (or 653901 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 20924768 is about 4574.3598459238. The cubic root of 20924768 is about 275.5625640874.

The spelling of 20924768 in words is "twenty million, nine hundred twenty-four thousand, seven hundred sixty-eight".