42245215 has 8 divisors (see below), whose sum is σ = 50734800. Its totient is φ = 33769152.

The previous prime is 42245179. The next prime is 42245237. The reversal of 42245215 is 51254224.

42245215 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 42245215 - 2⁷ = 42245087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42245215.

It is a congruent number.

It is an unprimeable number.

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, 5736 + ... + 10834.

It is an arithmetic number, because the mean of its divisors is an integer number (6341850).

Almost surely, 2^42245215 is an apocalyptic number.

42245215 is a deficient number, since it is larger than the sum of its proper divisors (8489585).

42245215 is a wasteful number, since it uses less digits than its factorization.

42245215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6761.

The product of its digits is 3200, while the sum is 25.

The square root of 42245215 is about 6499.6319126547. The cubic root of 42245215 is about 348.2778393977.

Adding to 42245215 its reverse (51254224), we get a palindrome (93499439).

Subtracting 42245215 from its reverse (51254224), we obtain a palindrome (9009009).

The spelling of 42245215 in words is "forty-two million, two hundred forty-five thousand, two hundred fifteen".