23142734 has 16 divisors (see below), whose sum is σ = 35665920. Its totient is φ = 11258520.

The previous prime is 23142733. The next prime is 23142751. The reversal of 23142734 is 43724132.

It is a super-2 number, since 2×23142734² = 1071172273989512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10187 + ... + 12249.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^23142734 is an apocalyptic number.

23142734 is a deficient number, since it is larger than the sum of its proper divisors (12523186).

23142734 is a wasteful number, since it uses less digits than its factorization.

23142734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215.

The product of its digits is 4032, while the sum is 26.

The square root of 23142734 is about 4810.6895555627. The cubic root of 23142734 is about 284.9737700288.

Adding to 23142734 its reverse (43724132), we get a palindrome (66866866).

The spelling of 23142734 in words is "twenty-three million, one hundred forty-two thousand, seven hundred thirty-four".