23839990 has 8 divisors (see below), whose sum is σ = 42912000. Its totient is φ = 9535992.

The previous prime is 23839987. The next prime is 23839993. The reversal of 23839990 is 9993832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23839987) and next prime (23839993).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23839993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191990 + ... + 1192009.

It is an arithmetic number, because the mean of its divisors is an integer number (5364000).

Almost surely, 2^23839990 is an apocalyptic number.

23839990 is a deficient number, since it is larger than the sum of its proper divisors (19072010).

23839990 is a wasteful number, since it uses less digits than its factorization.

23839990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384006.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 23839990 is about 4882.6212222535. The cubic root of 23839990 is about 287.8074442676.

The spelling of 23839990 in words is "twenty-three million, eight hundred thirty-nine thousand, nine hundred ninety".