23102406 has 24 divisors (see below), whose sum is σ = 50763024. Its totient is φ = 7591920.

The previous prime is 23102399. The next prime is 23102407. The reversal of 23102406 is 60420132.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7761 + ... + 10316.

It is an arithmetic number, because the mean of its divisors is an integer number (2115126).

Almost surely, 2^23102406 is an apocalyptic number.

23102406 is an abundant number, since it is smaller than the sum of its proper divisors (27660618).

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

23102406 is a wasteful number, since it uses less digits than its factorization.

23102406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18156 (or 18153 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23102406 is about 4806.4962290633. The cubic root of 23102406 is about 284.8081441907.

Adding to 23102406 its reverse (60420132), we get a palindrome (83522538).

The spelling of 23102406 in words is "twenty-three million, one hundred two thousand, four hundred six".