42415091 has 8 divisors (see below), whose sum is σ = 43031040. Its totient is φ = 41803272.

The previous prime is 42415067. The next prime is 42415111. The reversal of 42415091 is 19051424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42415091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42415091.

It is not an unprimeable number, because it can be changed into a prime (42415001) 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, 23756 + ... + 25478.

It is an arithmetic number, because the mean of its divisors is an integer number (5378880).

Almost surely, 2^42415091 is an apocalyptic number.

42415091 is a deficient number, since it is larger than the sum of its proper divisors (615949).

42415091 is a wasteful number, since it uses less digits than its factorization.

42415091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 42415091 is about 6512.6869263001. The cubic root of 42415091 is about 348.7440454099.

The spelling of 42415091 in words is "forty-two million, four hundred fifteen thousand, ninety-one".