42228656 has 10 divisors (see below), whose sum is σ = 81818052. Its totient is φ = 21114320.

The previous prime is 42228587. The next prime is 42228679. The reversal of 42228656 is 65682224.

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 as a sum of consecutive naturals, namely, 1319630 + ... + 1319661.

Almost surely, 2^42228656 is an apocalyptic number.

It is an amenable number.

42228656 is a deficient number, since it is larger than the sum of its proper divisors (39589396).

42228656 is a wasteful number, since it uses less digits than its factorization.

42228656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639299 (or 2639293 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 42228656 is about 6498.3579464354. The cubic root of 42228656 is about 348.2323282360.

The spelling of 42228656 in words is "forty-two million, two hundred twenty-eight thousand, six hundred fifty-six".