23405022 has 24 divisors (see below), whose sum is σ = 53694576. Its totient is φ = 7342656.

The previous prime is 23405021. The next prime is 23405027. The reversal of 23405022 is 22050432.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23404986 and 23405004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23405021) 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 11 ways as a sum of consecutive naturals, for example, 37938 + ... + 38549.

It is an arithmetic number, because the mean of its divisors is an integer number (2237274).

Almost surely, 2^23405022 is an apocalyptic number.

23405022 is an abundant number, since it is smaller than the sum of its proper divisors (30289554).

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

23405022 is a wasteful number, since it uses less digits than its factorization.

23405022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76512 (or 76509 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23405022 is about 4837.8737064954. The cubic root of 23405022 is about 286.0463109840.

Adding to 23405022 its reverse (22050432), we get a palindrome (45455454).

The spelling of 23405022 in words is "twenty-three million, four hundred five thousand, twenty-two".