23445442 has 4 divisors (see below), whose sum is σ = 35168166. Its totient is φ = 11722720.

The previous prime is 23445439. The next prime is 23445467. The reversal of 23445442 is 24454432.

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., 23242041 + 203401 = 4821^2 + 451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23445442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861359 + ... + 5861362.

Almost surely, 2^23445442 is an apocalyptic number.

23445442 is a deficient number, since it is larger than the sum of its proper divisors (11722724).

23445442 is a wasteful number, since it uses less digits than its factorization.

23445442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11722723.

The product of its digits is 15360, while the sum is 28.

The square root of 23445442 is about 4842.0493595171. The cubic root of 23445442 is about 286.2108816830.

Adding to 23445442 its reverse (24454432), we get a palindrome (47899874).

The spelling of 23445442 in words is "twenty-three million, four hundred forty-five thousand, four hundred forty-two".