42215927 has 8 divisors (see below), whose sum is σ = 46692576. Its totient is φ = 37914912.

The previous prime is 42215923. The next prime is 42215933. The reversal of 42215927 is 72951224.

42215927 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42215927 - 2² = 42215923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42215893 and 42215902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42215923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43403 + ... + 44364.

It is an arithmetic number, because the mean of its divisors is an integer number (5836572).

Almost surely, 2^42215927 is an apocalyptic number.

42215927 is a deficient number, since it is larger than the sum of its proper divisors (4476649).

42215927 is a wasteful number, since it uses less digits than its factorization.

42215927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87817.

The product of its digits is 10080, while the sum is 32.

The square root of 42215927 is about 6497.3784713529. The cubic root of 42215927 is about 348.1973354517.

The spelling of 42215927 in words is "forty-two million, two hundred fifteen thousand, nine hundred twenty-seven".