23381672 has 8 divisors (see below), whose sum is σ = 43840650. Its totient is φ = 11690832.

The previous prime is 23381671. The next prime is 23381689. The reversal of 23381672 is 27618332.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13734436 + 9647236 = 3706^2 + 3106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (23381671) 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, 1461347 + ... + 1461362.

Almost surely, 2^23381672 is an apocalyptic number.

It is an amenable number.

23381672 is a deficient number, since it is larger than the sum of its proper divisors (20458978).

23381672 is a wasteful number, since it uses less digits than its factorization.

23381672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922715 (or 2922711 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 23381672 is about 4835.4598540366. The cubic root of 23381672 is about 285.9511547144.

The spelling of 23381672 in words is "twenty-three million, three hundred eighty-one thousand, six hundred seventy-two".