20959424 has 14 divisors (see below), whose sum is σ = 41591484. Its totient is φ = 10479680.

The previous prime is 20959403. The next prime is 20959429. The reversal of 20959424 is 42495902.

It is not an unprimeable number, because it can be changed into a prime (20959429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163682 + ... + 163809.

Almost surely, 2^20959424 is an apocalyptic number.

It is an amenable number.

20959424 is a deficient number, since it is larger than the sum of its proper divisors (20632060).

20959424 is an equidigital number, since it uses as much as digits as its factorization.

20959424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327503 (or 327493 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 20959424 is about 4578.1463497796. The cubic root of 20959424 is about 275.7146108361.

The spelling of 20959424 in words is "twenty million, nine hundred fifty-nine thousand, four hundred twenty-four".