20023846 has 16 divisors (see below), whose sum is σ = 31788288. Its totient is φ = 9440200.

The previous prime is 20023837. The next prime is 20023847. The reversal of 20023846 is 64832002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20023846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023847) 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, 201 + ... + 6331.

It is an arithmetic number, because the mean of its divisors is an integer number (1986768).

Almost surely, 2^20023846 is an apocalyptic number.

20023846 is a deficient number, since it is larger than the sum of its proper divisors (11764442).

20023846 is a wasteful number, since it uses less digits than its factorization.

20023846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20023846 is about 4474.8012246356. The cubic root of 20023846 is about 271.5495988169.

Adding to 20023846 its reverse (64832002), we get a palindrome (84855848).

The spelling of 20023846 in words is "twenty million, twenty-three thousand, eight hundred forty-six".