422661615 has 16 divisors (see below), whose sum is σ = 678215808. Its totient is φ = 224767136.

The previous prime is 422661611. The next prime is 422661637. The reversal of 422661615 is 516166224.

It is a cyclic number.

It is not a de Polignac number, because 422661615 - 2² = 422661611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422661611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35397 + ... + 45806.

It is an arithmetic number, because the mean of its divisors is an integer number (42388488).

Almost surely, 2^422661615 is an apocalyptic number.

422661615 is a deficient number, since it is larger than the sum of its proper divisors (255554193).

422661615 is a wasteful number, since it uses less digits than its factorization.

422661615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81558.

The product of its digits is 17280, while the sum is 33.

The square root of 422661615 is about 20558.7357344755. The cubic root of 422661615 is about 750.4658528039.

The spelling of 422661615 in words is "four hundred twenty-two million, six hundred sixty-one thousand, six hundred fifteen".