20673168 has 20 divisors (see below), whose sum is σ = 53405808. Its totient is φ = 6891040.

The previous prime is 20673157. The next prime is 20673181. The reversal of 20673168 is 86137602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215298 + ... + 215393.

Almost surely, 2^20673168 is an apocalyptic number.

It is an amenable number.

20673168 is an abundant number, since it is smaller than the sum of its proper divisors (32732640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20673168 is a wasteful number, since it uses less digits than its factorization.

20673168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430702 (or 430696 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20673168 is about 4546.7755607683. The cubic root of 20673168 is about 274.4536502576.

The spelling of 20673168 in words is "twenty million, six hundred seventy-three thousand, one hundred sixty-eight".