23245542 has 80 divisors (see below), whose sum is σ = 55199232. Its totient is φ = 7302960.

The previous prime is 23245529. The next prime is 23245553. The reversal of 23245542 is 24554232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 in 39 ways as a sum of consecutive naturals, for example, 327367 + ... + 327437.

Almost surely, 2^23245542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23245542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27599616).

23245542 is an abundant number, since it is smaller than the sum of its proper divisors (31953690).

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

23245542 is a wasteful number, since it uses less digits than its factorization.

23245542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 166 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 23245542 is about 4821.3630852696. The cubic root of 23245542 is about 285.3951305990.

Adding to 23245542 its reverse (24554232), we get a palindrome (47799774).

The spelling of 23245542 in words is "twenty-three million, two hundred forty-five thousand, five hundred forty-two".