23720038 has 8 divisors (see below), whose sum is σ = 37127088. Its totient is φ = 11344344.

The previous prime is 23720027. The next prime is 23720063. The reversal of 23720038 is 83002732.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23719994 and 23720021.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 257781 + ... + 257872.

It is an arithmetic number, because the mean of its divisors is an integer number (4640886).

Almost surely, 2^23720038 is an apocalyptic number.

23720038 is a deficient number, since it is larger than the sum of its proper divisors (13407050).

23720038 is a wasteful number, since it uses less digits than its factorization.

23720038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515678.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 23720038 is about 4870.3221659352. The cubic root of 23720038 is about 287.3239269726.

The spelling of 23720038 in words is "twenty-three million, seven hundred twenty thousand, thirty-eight".