20253230 has 32 divisors (see below), whose sum is σ = 38154240. Its totient is φ = 7731360.

The previous prime is 20253209. The next prime is 20253241. The reversal of 20253230 is 3235202.

It is a junction number, because it is equal to n+sod(n) for n = 20253199 and 20253208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24077 + ... + 24903.

It is an arithmetic number, because the mean of its divisors is an integer number (1192320).

Almost surely, 2^20253230 is an apocalyptic number.

20253230 is a deficient number, since it is larger than the sum of its proper divisors (17901010).

20253230 is a wasteful number, since it uses less digits than its factorization.

20253230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944.

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

The square root of 20253230 is about 4500.3588745788. The cubic root of 20253230 is about 272.5825802519.

Adding to 20253230 its reverse (3235202), we get a palindrome (23488432).

The spelling of 20253230 in words is "twenty million, two hundred fifty-three thousand, two hundred thirty".