20282308 has 12 divisors (see below), whose sum is σ = 36639232. Its totient is φ = 9813960.

The previous prime is 20282303. The next prime is 20282323. The reversal of 20282308 is 80328202.

It is a super-2 number, since 2×20282308² = 822744035613728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20282303) 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, 81660 + ... + 81907.

Almost surely, 2^20282308 is an apocalyptic number.

It is an amenable number.

20282308 is a deficient number, since it is larger than the sum of its proper divisors (16356924).

20282308 is a wasteful number, since it uses less digits than its factorization.

20282308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163602 (or 163600 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 20282308 is about 4503.5883470850. The cubic root of 20282308 is about 272.7129687717.

The spelling of 20282308 in words is "twenty million, two hundred eighty-two thousand, three hundred eight".