20068218 has 24 divisors (see below), whose sum is σ = 45770400. Its totient is φ = 6337224.

The previous prime is 20068183. The next prime is 20068219. The reversal of 20068218 is 81286002.

It is a junction number, because it is equal to n+sod(n) for n = 20068191 and 20068200.

It is not an unprimeable number, because it can be changed into a prime (20068219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28998 + ... + 29681.

It is an arithmetic number, because the mean of its divisors is an integer number (1907100).

Almost surely, 2^20068218 is an apocalyptic number.

20068218 is an abundant number, since it is smaller than the sum of its proper divisors (25702182).

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

20068218 is a wasteful number, since it uses less digits than its factorization.

20068218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58706 (or 58703 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 20068218 is about 4479.7564665950. The cubic root of 20068218 is about 271.7500316669.

The spelling of 20068218 in words is "twenty million, sixty-eight thousand, two hundred eighteen".