20970298 has 16 divisors (see below), whose sum is σ = 32255496. Its totient is φ = 10221120.

The previous prime is 20970293. The next prime is 20970307. The reversal of 20970298 is 89207902.

It can be written as a sum of positive squares in 4 ways, for example, as 19298449 + 1671849 = 4393^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (20970293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18640 + ... + 19732.

Almost surely, 2^20970298 is an apocalyptic number.

20970298 is a deficient number, since it is larger than the sum of its proper divisors (11285198).

20970298 is a wasteful number, since it uses less digits than its factorization.

20970298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 20970298 is about 4579.3337943417. Note that the first 3 decimals coincide. The cubic root of 20970298 is about 275.7622839391.

It can be divided in two parts, 209 and 70298, that added together give a palindrome (70507).

The spelling of 20970298 in words is "twenty million, nine hundred seventy thousand, two hundred ninety-eight".