42210330 has 16 divisors (see below), whose sum is σ = 101304864. Its totient is φ = 11256080.

The previous prime is 42210319. The next prime is 42210331. The reversal of 42210330 is 3301224.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (42210331) 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, 703476 + ... + 703535.

It is an arithmetic number, because the mean of its divisors is an integer number (6331554).

Almost surely, 2^42210330 is an apocalyptic number.

42210330 is an abundant number, since it is smaller than the sum of its proper divisors (59094534).

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

42210330 is a wasteful number, since it uses less digits than its factorization.

42210330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407021.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 42210330 is about 6496.9477449030. The cubic root of 42210330 is about 348.1819467366.

Adding to 42210330 its reverse (3301224), we get a palindrome (45511554).

The spelling of 42210330 in words is "forty-two million, two hundred ten thousand, three hundred thirty".