42504330 has 64 divisors (see below), whose sum is σ = 117158400. Its totient is φ = 9760320.

The previous prime is 42504313. The next prime is 42504337. The reversal of 42504330 is 3340524.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42504297 and 42504306.

It is not an unprimeable number, because it can be changed into a prime (42504337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2881 + ... + 9659.

It is an arithmetic number, because the mean of its divisors is an integer number (1830600).

Almost surely, 2^42504330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42504330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58579200).

42504330 is an abundant number, since it is smaller than the sum of its proper divisors (74654070).

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

42504330 is a wasteful number, since it uses less digits than its factorization.

42504330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 42504330 is about 6519.5344925846. The cubic root of 42504330 is about 348.9884534621.

Adding to 42504330 its reverse (3340524), we get a palindrome (45844854).

The spelling of 42504330 in words is "forty-two million, five hundred four thousand, three hundred thirty".