20204042 has 8 divisors (see below), whose sum is σ = 30330336. Its totient is φ = 10093932.

The previous prime is 20204029. The next prime is 20204047. The reversal of 20204042 is 24040202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20204047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188 + ... + 6359.

It is an arithmetic number, because the mean of its divisors is an integer number (3791292).

Almost surely, 2^20204042 is an apocalyptic number.

20204042 is a deficient number, since it is larger than the sum of its proper divisors (10126294).

20204042 is a wasteful number, since it uses less digits than its factorization.

20204042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8092.

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

The square root of 20204042 is about 4494.8906549548. The cubic root of 20204042 is about 272.3617321715.

Adding to 20204042 its reverse (24040202), we get a palindrome (44244244).

The spelling of 20204042 in words is "twenty million, two hundred four thousand, forty-two".