20350208 has 18 divisors (see below), whose sum is σ = 40621434. Its totient is φ = 10174976.

The previous prime is 20350181. The next prime is 20350217. The reversal of 20350208 is 80205302.

It can be written as a sum of positive squares in only one way, i.e., 19784704 + 565504 = 4448^2 + 752^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20350208.

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, 39491 + ... + 40002.

Almost surely, 2^20350208 is an apocalyptic number.

It is an amenable number.

20350208 is a deficient number, since it is larger than the sum of its proper divisors (20271226).

20350208 is an frugal number, since it uses more digits than its factorization.

20350208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79509 (or 79495 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20350208 is about 4511.1204816542. The cubic root of 20350208 is about 273.0169543157.

The spelling of 20350208 in words is "twenty million, three hundred fifty thousand, two hundred eight".