23538946 has 4 divisors (see below), whose sum is σ = 35308422. Its totient is φ = 11769472.

The previous prime is 23538881. The next prime is 23538947. The reversal of 23538946 is 64983532.

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., 17313921 + 6225025 = 4161^2 + 2495^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 23538899 and 23538908.

It is not an unprimeable number, because it can be changed into a prime (23538947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5884735 + ... + 5884738.

Almost surely, 2^23538946 is an apocalyptic number.

23538946 is a deficient number, since it is larger than the sum of its proper divisors (11769476).

23538946 is a wasteful number, since it uses less digits than its factorization.

23538946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11769475.

The product of its digits is 155520, while the sum is 40.

The square root of 23538946 is about 4851.6951676708. The cubic root of 23538946 is about 286.5908612131.

The spelling of 23538946 in words is "twenty-three million, five hundred thirty-eight thousand, nine hundred forty-six".