23422618 has 4 divisors (see below), whose sum is σ = 35133930. Its totient is φ = 11711308.

The previous prime is 23422571. The next prime is 23422627. The reversal of 23422618 is 81622432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11950849 + 11471769 = 3457^2 + 3387^2 .

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 as a sum of consecutive naturals, namely, 5855653 + ... + 5855656.

Almost surely, 2^23422618 is an apocalyptic number.

23422618 is a deficient number, since it is larger than the sum of its proper divisors (11711312).

23422618 is a wasteful number, since it uses less digits than its factorization.

23422618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11711311.

The product of its digits is 4608, while the sum is 28.

The square root of 23422618 is about 4839.6919323445. The cubic root of 23422618 is about 286.1179766586.

The spelling of 23422618 in words is "twenty-three million, four hundred twenty-two thousand, six hundred eighteen".