42307212 has 24 divisors (see below), whose sum is σ = 103009536. Its totient is φ = 13489168.

The previous prime is 42307207. The next prime is 42307231. The reversal of 42307212 is 21270324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76368 + ... + 76919.

It is an arithmetic number, because the mean of its divisors is an integer number (4292064).

Almost surely, 2^42307212 is an apocalyptic number.

It is an amenable number.

42307212 is an abundant number, since it is smaller than the sum of its proper divisors (60702324).

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

42307212 is a wasteful number, since it uses less digits than its factorization.

42307212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153317 (or 153315 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 42307212 is about 6504.3994342291. The cubic root of 42307212 is about 348.4481279323.

Adding to 42307212 its reverse (21270324), we get a palindrome (63577536).

The spelling of 42307212 in words is "forty-two million, three hundred seven thousand, two hundred twelve".