20230646 has 16 divisors (see below), whose sum is σ = 32307984. Its totient is φ = 9467904.

The previous prime is 20230643. The next prime is 20230657. The reversal of 20230646 is 64603202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20230643) 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, 5021 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (2019249).

Almost surely, 2^20230646 is an apocalyptic number.

20230646 is a deficient number, since it is larger than the sum of its proper divisors (12077338).

20230646 is a wasteful number, since it uses less digits than its factorization.

20230646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20230646 is about 4497.8490414864. The cubic root of 20230646 is about 272.4812253148.

Adding to 20230646 its reverse (64603202), we get a palindrome (84833848).

The spelling of 20230646 in words is "twenty million, two hundred thirty thousand, six hundred forty-six".