23140842 has 16 divisors (see below), whose sum is σ = 49004352. Its totient is φ = 7259840.

The previous prime is 23140823. The next prime is 23140853. The reversal of 23140842 is 24804132.

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, 113334 + ... + 113537.

It is an arithmetic number, because the mean of its divisors is an integer number (3062772).

Almost surely, 2^23140842 is an apocalyptic number.

23140842 is an abundant number, since it is smaller than the sum of its proper divisors (25863510).

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

23140842 is a wasteful number, since it uses less digits than its factorization.

23140842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226893.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 23140842 is about 4810.4929061376. The cubic root of 23140842 is about 284.9660039474.

Adding to 23140842 its reverse (24804132), we get a palindrome (47944974).

The spelling of 23140842 in words is "twenty-three million, one hundred forty thousand, eight hundred forty-two".