23442136 has 8 divisors (see below), whose sum is σ = 43954020. Its totient is φ = 11721064.

The previous prime is 23442113. The next prime is 23442137. The reversal of 23442136 is 63124432.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 23442136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23442137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1465126 + ... + 1465141.

Almost surely, 2^23442136 is an apocalyptic number.

It is an amenable number.

23442136 is a deficient number, since it is larger than the sum of its proper divisors (20511884).

23442136 is a wasteful number, since it uses less digits than its factorization.

23442136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930273 (or 2930269 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 23442136 is about 4841.7079631056. The cubic root of 23442136 is about 286.1974283552.

Adding to 23442136 its reverse (63124432), we get a palindrome (86566568).

The spelling of 23442136 in words is "twenty-three million, four hundred forty-two thousand, one hundred thirty-six".