23453120 has 28 divisors (see below), whose sum is σ = 55848504. Its totient is φ = 9381120.

The previous prime is 23453119. The next prime is 23453137. The reversal of 23453120 is 2135432.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23453092 and 23453101.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 36326 + ... + 36965.

Almost surely, 2^23453120 is an apocalyptic number.

23453120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23453120 is an abundant number, since it is smaller than the sum of its proper divisors (32395384).

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

23453120 is an equidigital number, since it uses as much as digits as its factorization.

23453120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73308 (or 73298 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23453120 is about 4842.8421407269. The cubic root of 23453120 is about 286.2421214056.

Adding to 23453120 its reverse (2135432), we get a palindrome (25588552).

The spelling of 23453120 in words is "twenty-three million, four hundred fifty-three thousand, one hundred twenty".