42022312 has 16 divisors (see below), whose sum is σ = 79790400. Its totient is φ = 20744880.

The previous prime is 42022307. The next prime is 42022313. The reversal of 42022312 is 21322024.

It is not an unprimeable number, because it can be changed into a prime (42022313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32614 + ... + 33877.

It is an arithmetic number, because the mean of its divisors is an integer number (4986900).

Almost surely, 2^42022312 is an apocalyptic number.

It is an amenable number.

42022312 is a deficient number, since it is larger than the sum of its proper divisors (37768088).

42022312 is a wasteful number, since it uses less digits than its factorization.

42022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66576 (or 66572 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42022312 is about 6482.4618780213. The cubic root of 42022312 is about 347.6642068512.

Adding to 42022312 its reverse (21322024), we get a palindrome (63344336).

The spelling of 42022312 in words is "forty-two million, twenty-two thousand, three hundred twelve".