23653442 has 18 divisors (see below), whose sum is σ = 37653849. Its totient is φ = 11142360.

The previous prime is 23653417. The next prime is 23653451. The reversal of 23653442 is 24435632.

It can be written as a sum of positive squares in 2 ways, for example, as 14295961 + 9357481 = 3781^2 + 3059^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3439.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 130592 + ... + 130772.

Almost surely, 2^23653442 is an apocalyptic number.

23653442 is a deficient number, since it is larger than the sum of its proper divisors (14000407).

23653442 is an equidigital number, since it uses as much as digits as its factorization.

23653442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 202 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 23653442 is about 4863.4804410011. The cubic root of 23653442 is about 287.0547795738.

The spelling of 23653442 in words is "twenty-three million, six hundred fifty-three thousand, four hundred forty-two".