42204220 has 48 divisors (see below), whose sum is σ = 90927648. Its totient is φ = 16450560.

The previous prime is 42204209. The next prime is 42204223. The reversal of 42204220 is 2240224.

It is a junction number, because it is equal to n+sod(n) for n = 42204194 and 42204203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42204223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199915 + ... + 200125.

It is an arithmetic number, because the mean of its divisors is an integer number (1894326).

Almost surely, 2^42204220 is an apocalyptic number.

It is an amenable number.

42204220 is an abundant number, since it is smaller than the sum of its proper divisors (48723428).

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

42204220 is a wasteful number, since it uses less digits than its factorization.

42204220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 42204220 is about 6496.4775070803. The cubic root of 42204220 is about 348.1651459965.

Adding to 42204220 its reverse (2240224), we get a palindrome (44444444).

It can be divided in two parts, 42204 and 220, that added together give a palindrome (42424).

The spelling of 42204220 in words is "forty-two million, two hundred four thousand, two hundred twenty".