23102420 has 48 divisors (see below), whose sum is σ = 53319168. Its totient is φ = 8338560.

The previous prime is 23102413. The next prime is 23102449. The reversal of 23102420 is 2420132.

It is a junction number, because it is equal to n+sod(n) for n = 23102395 and 23102404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37757 + ... + 38363.

It is an arithmetic number, because the mean of its divisors is an integer number (1110816).

Almost surely, 2^23102420 is an apocalyptic number.

23102420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23102420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26659584).

23102420 is an abundant number, since it is smaller than the sum of its proper divisors (30216748).

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

23102420 is a wasteful number, since it uses less digits than its factorization.

23102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 798 counting only the distinct ones).

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

The square root of 23102420 is about 4806.4976854254. The cubic root of 23102420 is about 284.8082017217.

Adding to 23102420 its reverse (2420132), we get a palindrome (25522552).

The spelling of 23102420 in words is "twenty-three million, one hundred two thousand, four hundred twenty".