20004246 has 24 divisors (see below), whose sum is σ = 44948904. Its totient is φ = 6667920.

The previous prime is 20004239. The next prime is 20004253. The reversal of 20004246 is 64240002.

It is an interprime number because it is at equal distance from previous prime (20004239) and next prime (20004253).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 20095 + ... + 21066.

It is an arithmetic number, because the mean of its divisors is an integer number (1872871).

Almost surely, 2^20004246 is an apocalyptic number.

20004246 is an abundant number, since it is smaller than the sum of its proper divisors (24944658).

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

20004246 is an equidigital number, since it uses as much as digits as its factorization.

20004246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41178 (or 41166 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20004246 is about 4472.6106470383. The cubic root of 20004246 is about 271.4609693290.

Adding to 20004246 its reverse (64240002), we get a palindrome (84244248).

The spelling of 20004246 in words is "twenty million, four thousand, two hundred forty-six".