42210312 has 32 divisors (see below), whose sum is σ = 109166400. Its totient is φ = 13584704.

The previous prime is 42210271. The next prime is 42210319. The reversal of 42210312 is 21301224.

It is a junction number, because it is equal to n+sod(n) for n = 42210291 and 42210300.

It is not an unprimeable number, because it can be changed into a prime (42210319) 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, 29628 + ... + 31019.

It is an arithmetic number, because the mean of its divisors is an integer number (3411450).

Almost surely, 2^42210312 is an apocalyptic number.

It is an amenable number.

42210312 is an abundant number, since it is smaller than the sum of its proper divisors (66956088).

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

42210312 is a wasteful number, since it uses less digits than its factorization.

42210312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60685 (or 60681 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 42210312 is about 6496.9463596370. The cubic root of 42210312 is about 348.1818972441.

Adding to 42210312 its reverse (21301224), we get a palindrome (63511536).

The spelling of 42210312 in words is "forty-two million, two hundred ten thousand, three hundred twelve".