20302230 has 32 divisors (see below), whose sum is σ = 52474464. Its totient is φ = 4997376.

The previous prime is 20302223. The next prime is 20302259. The reversal of 20302230 is 3220302.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25639 + ... + 26418.

It is an arithmetic number, because the mean of its divisors is an integer number (1639827).

Almost surely, 2^20302230 is an apocalyptic number.

20302230 is an abundant number, since it is smaller than the sum of its proper divisors (32172234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20302230 is a wasteful number, since it uses less digits than its factorization.

20302230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52080.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20302230 is about 4505.7995960762. The cubic root of 20302230 is about 272.8022289931.

Adding to 20302230 its reverse (3220302), we get a palindrome (23522532).

The spelling of 20302230 in words is "twenty million, three hundred two thousand, two hundred thirty".