20352230 has 32 divisors (see below), whose sum is σ = 40836960. Its totient is φ = 7257600.

The previous prime is 20352203. The next prime is 20352259. The reversal of 20352230 is 3225302.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 20352199 and 20352208.

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, 80 + ... + 6380.

It is an arithmetic number, because the mean of its divisors is an integer number (1276155).

Almost surely, 2^20352230 is an apocalyptic number.

20352230 is an abundant number, since it is smaller than the sum of its proper divisors (20484730).

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

20352230 is a wasteful number, since it uses less digits than its factorization.

20352230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 20352230 is about 4511.3445889225. The cubic root of 20352230 is about 273.0259963526.

Adding to 20352230 its reverse (3225302), we get a palindrome (23577532).

The spelling of 20352230 in words is "twenty million, three hundred fifty-two thousand, two hundred thirty".