42020304 has 40 divisors (see below), whose sum is σ = 112299360. Its totient is φ = 13523328.

The previous prime is 42020281. The next prime is 42020309. The reversal of 42020304 is 40302024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13702 + ... + 16485.

It is an arithmetic number, because the mean of its divisors is an integer number (2807484).

Almost surely, 2^42020304 is an apocalyptic number.

It is an amenable number.

42020304 is an abundant number, since it is smaller than the sum of its proper divisors (70279056).

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

42020304 is a wasteful number, since it uses less digits than its factorization.

42020304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30227 (or 30221 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 42020304 is about 6482.3069967412. The cubic root of 42020304 is about 347.6586691514.

Adding to 42020304 its reverse (40302024), we get a palindrome (82322328).

It can be divided in two parts, 42020 and 304, that added together give a palindrome (42324).

The spelling of 42020304 in words is "forty-two million, twenty thousand, three hundred four".