23900242 has 4 divisors (see below), whose sum is σ = 35850366. Its totient is φ = 11950120.

The previous prime is 23900231. The next prime is 23900281. The reversal of 23900242 is 24200932.

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., 22648081 + 1252161 = 4759^2 + 1119^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 5975059 + ... + 5975062.

Almost surely, 2^23900242 is an apocalyptic number.

23900242 is a deficient number, since it is larger than the sum of its proper divisors (11950124).

23900242 is a wasteful number, since it uses less digits than its factorization.

23900242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11950123.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 23900242 is about 4888.7873752087. The cubic root of 23900242 is about 288.0497036772.

It can be divided in two parts, 23900 and 242, that added together give a palindrome (24142).

The spelling of 23900242 in words is "twenty-three million, nine hundred thousand, two hundred forty-two".