20704202 has 8 divisors (see below), whose sum is σ = 32127300. Its totient is φ = 9995104.

The previous prime is 20704183. The next prime is 20704207. The reversal of 20704202 is 20240702.

It can be written as a sum of positive squares in 2 ways, for example, as 20620681 + 83521 = 4541^2 + 289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20704207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178427 + ... + 178542.

Almost surely, 2^20704202 is an apocalyptic number.

20704202 is a deficient number, since it is larger than the sum of its proper divisors (11423098).

20704202 is a wasteful number, since it uses less digits than its factorization.

20704202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357000.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 20704202 is about 4550.1870291231. The cubic root of 20704202 is about 274.5909157234.

Adding to 20704202 its reverse (20240702), we get a palindrome (40944904).

The spelling of 20704202 in words is "twenty million, seven hundred four thousand, two hundred two".