23423556 has 24 divisors (see below), whose sum is σ = 58859584. Its totient is φ = 7207200.

The previous prime is 23423551. The next prime is 23423563. The reversal of 23423556 is 65532432.

It is not an unprimeable number, because it can be changed into a prime (23423551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 74920 + ... + 75231.

Almost surely, 2^23423556 is an apocalyptic number.

23423556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23423556 is an abundant number, since it is smaller than the sum of its proper divisors (35436028).

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

23423556 is a wasteful number, since it uses less digits than its factorization.

23423556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150171 (or 150169 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 23423556 is about 4839.7888383689. The cubic root of 23423556 is about 286.1217959737.

Adding to 23423556 its reverse (65532432), we get a palindrome (88955988).

The spelling of 23423556 in words is "twenty-three million, four hundred twenty-three thousand, five hundred fifty-six".