23542245 has 20 divisors (see below), whose sum is σ = 42202380. Its totient is φ = 12555648.

The previous prime is 23542243. The next prime is 23542283. The reversal of 23542245 is 54224532.

It is a happy number.

23542245 is a `hidden beast` number, since 235 + 422 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16916769 + 6625476 = 4113^2 + 2574^2 .

It is not a de Polignac number, because 23542245 - 2¹ = 23542243 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23542243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28660 + ... + 29469.

It is an arithmetic number, because the mean of its divisors is an integer number (2110119).

Almost surely, 2^23542245 is an apocalyptic number.

It is an amenable number.

23542245 is a deficient number, since it is larger than the sum of its proper divisors (18660135).

23542245 is an equidigital number, since it uses as much as digits as its factorization.

23542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58146 (or 58137 counting only the distinct ones).

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

The square root of 23542245 is about 4852.0351400211. The cubic root of 23542245 is about 286.6042492252.

Adding to 23542245 its reverse (54224532), we get a palindrome (77766777).

The spelling of 23542245 in words is "twenty-three million, five hundred forty-two thousand, two hundred forty-five".