20800270 has 8 divisors (see below), whose sum is σ = 37440504. Its totient is φ = 8320104.

The previous prime is 20800229. The next prime is 20800277. The reversal of 20800270 is 7200802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20800277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040004 + ... + 1040023.

It is an arithmetic number, because the mean of its divisors is an integer number (4680063).

Almost surely, 2^20800270 is an apocalyptic number.

20800270 is a deficient number, since it is larger than the sum of its proper divisors (16640234).

20800270 is a wasteful number, since it uses less digits than its factorization.

20800270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080034.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20800270 is about 4560.7313010086. The cubic root of 20800270 is about 275.0149633731.

The spelling of 20800270 in words is "twenty million, eight hundred thousand, two hundred seventy".