23142724 has 24 divisors (see below), whose sum is σ = 44720928. Its totient is φ = 10391040.

The previous prime is 23142719. The next prime is 23142733. The reversal of 23142724 is 42724132.

It is a happy 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, 484 + ... + 6820.

It is an arithmetic number, because the mean of its divisors is an integer number (1863372).

Almost surely, 2^23142724 is an apocalyptic number.

It is an amenable number.

23142724 is a deficient number, since it is larger than the sum of its proper divisors (21578204).

23142724 is a wasteful number, since it uses less digits than its factorization.

23142724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435 (or 6433 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 23142724 is about 4810.6885162105. The cubic root of 23142724 is about 284.9737289830.

Adding to 23142724 its reverse (42724132), we get a palindrome (65866856).

The spelling of 23142724 in words is "twenty-three million, one hundred forty-two thousand, seven hundred twenty-four".