23784146 has 4 divisors (see below), whose sum is σ = 35676222. Its totient is φ = 11892072.

The previous prime is 23784133. The next prime is 23784149. The reversal of 23784146 is 64148732.

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., 21724921 + 2059225 = 4661^2 + 1435^2 .

It is not an unprimeable number, because it can be changed into a prime (23784149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5946035 + ... + 5946038.

Almost surely, 2^23784146 is an apocalyptic number.

23784146 is a deficient number, since it is larger than the sum of its proper divisors (11892076).

23784146 is a wasteful number, since it uses less digits than its factorization.

23784146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11892075.

The product of its digits is 32256, while the sum is 35.

The square root of 23784146 is about 4876.8992197912. The cubic root of 23784146 is about 287.5825436586.

The spelling of 23784146 in words is "twenty-three million, seven hundred eighty-four thousand, one hundred forty-six".