23305642 has 8 divisors (see below), whose sum is σ = 35190432. Its totient is φ = 11575500.

The previous prime is 23305631. The next prime is 23305651. The reversal of 23305642 is 24650332.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38284 + ... + 38887.

It is an arithmetic number, because the mean of its divisors is an integer number (4398804).

Almost surely, 2^23305642 is an apocalyptic number.

23305642 is a deficient number, since it is larger than the sum of its proper divisors (11884790).

23305642 is a wasteful number, since it uses less digits than its factorization.

23305642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77324.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 23305642 is about 4827.5917391594. The cubic root of 23305642 is about 285.6408764499.

Adding to 23305642 its reverse (24650332), we get a palindrome (47955974).

The spelling of 23305642 in words is "twenty-three million, three hundred five thousand, six hundred forty-two".