42204020 has 24 divisors (see below), whose sum is σ = 91488768. Its totient is φ = 16336800.

The previous prime is 42204017. The next prime is 42204049. The reversal of 42204020 is 2040224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42203986 and 42204004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33416 + ... + 34655.

It is an arithmetic number, because the mean of its divisors is an integer number (3812032).

Almost surely, 2^42204020 is an apocalyptic number.

It is an amenable number.

42204020 is an abundant number, since it is smaller than the sum of its proper divisors (49284748).

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

42204020 is a wasteful number, since it uses less digits than its factorization.

42204020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68111 (or 68109 counting only the distinct ones).

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

The square root of 42204020 is about 6496.4621141049. The cubic root of 42204020 is about 348.1645960267.

Adding to 42204020 its reverse (2040224), we get a palindrome (44244244).

The spelling of 42204020 in words is "forty-two million, two hundred four thousand, twenty".