42243330 has 16 divisors (see below), whose sum is σ = 101384064. Its totient is φ = 11264880.

The previous prime is 42243281. The next prime is 42243337. The reversal of 42243330 is 3334224.

It is a junction number, because it is equal to n+sod(n) for n = 42243297 and 42243306.

It is not an unprimeable number, because it can be changed into a prime (42243337) 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, 704026 + ... + 704085.

It is an arithmetic number, because the mean of its divisors is an integer number (6336504).

Almost surely, 2^42243330 is an apocalyptic number.

42243330 is an abundant number, since it is smaller than the sum of its proper divisors (59140734).

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

42243330 is a wasteful number, since it uses less digits than its factorization.

42243330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408121.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 42243330 is about 6499.4869028255. The cubic root of 42243330 is about 348.2726592174.

Adding to 42243330 its reverse (3334224), we get a palindrome (45577554).

The spelling of 42243330 in words is "forty-two million, two hundred forty-three thousand, three hundred thirty".