23143830 has 16 divisors (see below), whose sum is σ = 55545264. Its totient is φ = 6171680.

The previous prime is 23143829. The next prime is 23143849. The reversal of 23143830 is 3834132.

It is a self number, because there is not a number n which added to its sum of digits gives 23143830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385701 + ... + 385760.

It is an arithmetic number, because the mean of its divisors is an integer number (3471579).

Almost surely, 2^23143830 is an apocalyptic number.

23143830 is an abundant number, since it is smaller than the sum of its proper divisors (32401434).

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

23143830 is a wasteful number, since it uses less digits than its factorization.

23143830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771471.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23143830 is about 4810.8034671976. The cubic root of 23143830 is about 284.9782685800.

Subtracting from 23143830 its sum of digits (24), we obtain a triangular number (23143806 = T₆₈₀₃).

Adding to 23143830 its reverse (3834132), we get a palindrome (26977962).

The spelling of 23143830 in words is "twenty-three million, one hundred forty-three thousand, eight hundred thirty".