20045230 has 16 divisors (see below), whose sum is σ = 36138960. Its totient is φ = 8005312.

The previous prime is 20045197. The next prime is 20045237. The reversal of 20045230 is 3254002.

It is a super-2 number, since 2×20045230² = 803622491505800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7401 + ... + 9739.

It is an arithmetic number, because the mean of its divisors is an integer number (2258685).

Almost surely, 2^20045230 is an apocalyptic number.

20045230 is a deficient number, since it is larger than the sum of its proper divisors (16093730).

20045230 is a wasteful number, since it uses less digits than its factorization.

20045230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20045230 is about 4477.1899669324. The cubic root of 20045230 is about 271.6462294502.

Adding to 20045230 its reverse (3254002), we get a palindrome (23299232).

The spelling of 20045230 in words is "twenty million, forty-five thousand, two hundred thirty".