23422515 has 32 divisors (see below), whose sum is σ = 40974336. Its totient is φ = 11374080.

The previous prime is 23422501. The next prime is 23422537. The reversal of 23422515 is 51522432.

It is not a de Polignac number, because 23422515 - 2²² = 19228211 is a prime.

It is a super-2 number, since 2×23422515² = 1097228417850450, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 6424 + ... + 9386.

It is an arithmetic number, because the mean of its divisors is an integer number (1280448).

Almost surely, 2^23422515 is an apocalyptic number.

23422515 is a deficient number, since it is larger than the sum of its proper divisors (17551821).

23422515 is a wasteful number, since it uses less digits than its factorization.

23422515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019.

The product of its digits is 2400, while the sum is 24.

The square root of 23422515 is about 4839.6812911596. The cubic root of 23422515 is about 286.1175572606.

Adding to 23422515 its reverse (51522432), we get a palindrome (74944947).

The spelling of 23422515 in words is "twenty-three million, four hundred twenty-two thousand, five hundred fifteen".