23210420 has 24 divisors (see below), whose sum is σ = 48862464. Its totient is φ = 9261216.

The previous prime is 23210417. The next prime is 23210431. The reversal of 23210420 is 2401232.

It is a junction number, because it is equal to n+sod(n) for n = 23210395 and 23210404.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 8549 + ... + 10931.

It is an arithmetic number, because the mean of its divisors is an integer number (2035936).

Almost surely, 2^23210420 is an apocalyptic number.

23210420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23210420 is an abundant number, since it is smaller than the sum of its proper divisors (25652044).

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

23210420 is a wasteful number, since it uses less digits than its factorization.

23210420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2877 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 23210420 is about 4817.7193774648. The cubic root of 23210420 is about 285.2513223754.

Adding to 23210420 its reverse (2401232), we get a palindrome (25611652).

The spelling of 23210420 in words is "twenty-three million, two hundred ten thousand, four hundred twenty".