23949642 has 8 divisors (see below), whose sum is σ = 47899296. Its totient is φ = 7983212.

The previous prime is 23949631. The next prime is 23949643. The reversal of 23949642 is 24694932.

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

23949642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 23949642.

It is not an unprimeable number, because it can be changed into a prime (23949643) by changing a digit.

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, 1995798 + ... + 1995809.

It is an arithmetic number, because the mean of its divisors is an integer number (5987412).

Almost surely, 2^23949642 is an apocalyptic number.

23949642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23949642 is a wasteful number, since it uses less digits than its factorization.

23949642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991612.

The product of its digits is 93312, while the sum is 39.

The square root of 23949642 is about 4893.8371448180. The cubic root of 23949642 is about 288.2480261144.

The spelling of 23949642 in words is "twenty-three million, nine hundred forty-nine thousand, six hundred forty-two".