42223615 has 16 divisors (see below), whose sum is σ = 58508352. Its totient is φ = 28652544.

The previous prime is 42223609. The next prime is 42223619. The reversal of 42223615 is 51632224.

It is a cyclic number.

It is not a de Polignac number, because 42223615 - 2⁵ = 42223583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42223615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2824 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (3656772).

Almost surely, 2^42223615 is an apocalyptic number.

42223615 is a deficient number, since it is larger than the sum of its proper divisors (16284737).

42223615 is a wasteful number, since it uses less digits than its factorization.

42223615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546.

The product of its digits is 2880, while the sum is 25.

The square root of 42223615 is about 6497.9700676442. The cubic root of 42223615 is about 348.2184710658.

Adding to 42223615 its reverse (51632224), we get a palindrome (93855839).

The spelling of 42223615 in words is "forty-two million, two hundred twenty-three thousand, six hundred fifteen".