42042212 has 24 divisors (see below), whose sum is σ = 79544640. Its totient is φ = 19375200.

The previous prime is 42042211. The next prime is 42042227. The reversal of 42042212 is 21224024.

It is a happy number.

42042212 is nontrivially palindromic in base 3.

It is not an unprimeable number, because it can be changed into a prime (42042211) 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, 4664 + ... + 10287.

It is an arithmetic number, because the mean of its divisors is an integer number (3314360).

Almost surely, 2^42042212 is an apocalyptic number.

It is an amenable number.

42042212 is a deficient number, since it is larger than the sum of its proper divisors (37502428).

42042212 is a wasteful number, since it uses less digits than its factorization.

42042212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15011 (or 15009 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42042212 is about 6483.9966070318. The cubic root of 42042212 is about 347.7190779071.

Adding to 42042212 its reverse (21224024), we get a palindrome (63266236).

The spelling of 42042212 in words is "forty-two million, forty-two thousand, two hundred twelve".