23403242 has 8 divisors (see below), whose sum is σ = 35206500. Its totient is φ = 11667744.

The previous prime is 23403241. The next prime is 23403293. The reversal of 23403242 is 24230432.

It can be written as a sum of positive squares in 2 ways, for example, as 22648081 + 755161 = 4759^2 + 869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23403242² = 1095423472221128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23403241) 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 in 3 ways as a sum of consecutive naturals, for example, 16067 + ... + 17462.

Almost surely, 2^23403242 is an apocalyptic number.

23403242 is a deficient number, since it is larger than the sum of its proper divisors (11803258).

23403242 is a wasteful number, since it uses less digits than its factorization.

23403242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33880.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 23403242 is about 4837.6897378811. The cubic root of 23403242 is about 286.0390593303.

Adding to 23403242 its reverse (24230432), we get a palindrome (47633674).

The spelling of 23403242 in words is "twenty-three million, four hundred three thousand, two hundred forty-two".