20641792 has 24 divisors (see below), whose sum is σ = 41277600. Its totient is φ = 10319872.

The previous prime is 20641769. The next prime is 20641811. The reversal of 20641792 is 29714602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2992 + ... + 7087.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^20641792 is an apocalyptic number.

It is an amenable number.

20641792 is a deficient number, since it is larger than the sum of its proper divisors (20635808).

20641792 is an equidigital number, since it uses as much as digits as its factorization.

20641792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101 (or 10081 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20641792 is about 4543.3238933627. The cubic root of 20641792 is about 274.3147323797.

The spelling of 20641792 in words is "twenty million, six hundred forty-one thousand, seven hundred ninety-two".