23240742 has 16 divisors (see below), whose sum is σ = 53121792. Its totient is φ = 6640200.

The previous prime is 23240729. The next prime is 23240753. The reversal of 23240742 is 24704232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276634 + ... + 276717.

It is an arithmetic number, because the mean of its divisors is an integer number (3320112).

Almost surely, 2^23240742 is an apocalyptic number.

23240742 is an abundant number, since it is smaller than the sum of its proper divisors (29881050).

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

23240742 is a wasteful number, since it uses less digits than its factorization.

23240742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553363.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 23240742 is about 4820.8652750310. The cubic root of 23240742 is about 285.3754853852.

Adding to 23240742 its reverse (24704232), we get a palindrome (47944974).

The spelling of 23240742 in words is "twenty-three million, two hundred forty thousand, seven hundred forty-two".