23869990 has 8 divisors (see below), whose sum is σ = 42966000. Its totient is φ = 9547992.

The previous prime is 23869961. The next prime is 23869997. The reversal of 23869990 is 9996832.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23869990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23869997) 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, 1193490 + ... + 1193509.

It is an arithmetic number, because the mean of its divisors is an integer number (5370750).

Almost surely, 2^23869990 is an apocalyptic number.

23869990 is a deficient number, since it is larger than the sum of its proper divisors (19096010).

23869990 is a wasteful number, since it uses less digits than its factorization.

23869990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387006.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 23869990 is about 4885.6923767261. The cubic root of 23869990 is about 287.9281183132.

The spelling of 23869990 in words is "twenty-three million, eight hundred sixty-nine thousand, nine hundred ninety".