20042204 has 24 divisors (see below), whose sum is σ = 43168608. Its totient is φ = 7928640.

The previous prime is 20042173. The next prime is 20042249. The reversal of 20042204 is 40224002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 7 ways as a sum of consecutive naturals, for example, 27167 + ... + 27894.

It is an arithmetic number, because the mean of its divisors is an integer number (1798692).

Almost surely, 2^20042204 is an apocalyptic number.

It is an amenable number.

20042204 is an abundant number, since it is smaller than the sum of its proper divisors (23126404).

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

20042204 is a wasteful number, since it uses less digits than its factorization.

20042204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55085 (or 55083 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20042204 is about 4476.8520189973. The cubic root of 20042204 is about 271.6325596502.

Adding to 20042204 its reverse (40224002), we get a palindrome (60266206).

The spelling of 20042204 in words is "twenty million, forty-two thousand, two hundred four".