20359168 has 24 divisors (see below), whose sum is σ = 40712490. Its totient is φ = 10178560.

The previous prime is 20359133. The next prime is 20359187. The reversal of 20359168 is 86195302.

It can be written as a sum of positive squares in only one way, i.e., 20358144 + 1024 = 4512^2 + 32^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2923 + ... + 7018.

Almost surely, 2^20359168 is an apocalyptic number.

It is an amenable number.

20359168 is a deficient number, since it is larger than the sum of its proper divisors (20353322).

20359168 is an frugal number, since it uses more digits than its factorization.

20359168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963 (or 9943 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 20359168 is about 4512.1134737504. The cubic root of 20359168 is about 273.0570173457.

The spelling of 20359168 in words is "twenty million, three hundred fifty-nine thousand, one hundred sixty-eight".