12423534 has 16 divisors (see below), whose sum is σ = 25001472. Its totient is φ = 4115448.

The previous prime is 12423491. The next prime is 12423539. The reversal of 12423534 is 43532421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423539) 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, 5374 + ... + 7329.

It is an arithmetic number, because the mean of its divisors is an integer number (1562592).

Almost surely, 2^12423534 is an apocalyptic number.

12423534 is an abundant number, since it is smaller than the sum of its proper divisors (12577938).

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

12423534 is a wasteful number, since it uses less digits than its factorization.

12423534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871.

The product of its digits is 2880, while the sum is 24.

The square root of 12423534 is about 3524.7033917764. The cubic root of 12423534 is about 231.6052417820.

Adding to 12423534 its reverse (43532421), we get a palindrome (55955955).

The spelling of 12423534 in words is "twelve million, four hundred twenty-three thousand, five hundred thirty-four".