23040642 has 8 divisors (see below), whose sum is σ = 46081296. Its totient is φ = 7680212.

The previous prime is 23040629. The next prime is 23040643. The reversal of 23040642 is 24604032.

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

23040642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (23040643) 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, 1920048 + ... + 1920059.

It is an arithmetic number, because the mean of its divisors is an integer number (5760162).

Almost surely, 2^23040642 is an apocalyptic number.

23040642 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.

23040642 is a wasteful number, since it uses less digits than its factorization.

23040642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840112.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 23040642 is about 4800.0668745341. The cubic root of 23040642 is about 284.5541073040.

Adding to 23040642 its reverse (24604032), we get a palindrome (47644674).

The spelling of 23040642 in words is "twenty-three million, forty thousand, six hundred forty-two".