42245912 has 32 divisors (see below), whose sum is σ = 80967600. Its totient is φ = 20659584.

The previous prime is 42245891. The next prime is 42245927. The reversal of 42245912 is 21954224.

It is a congruent number.

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, 144038 + ... + 144330.

Almost surely, 2^42245912 is an apocalyptic number.

It is an amenable number.

42245912 is a deficient number, since it is larger than the sum of its proper divisors (38721688).

42245912 is a wasteful number, since it uses less digits than its factorization.

42245912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 631 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 42245912 is about 6499.6855308546. The cubic root of 42245912 is about 348.2797547887.

The spelling of 42245912 in words is "forty-two million, two hundred forty-five thousand, nine hundred twelve".