23455320 has 96 divisors (see below), whose sum is σ = 81874800. Its totient is φ = 5359872.

The previous prime is 23455319. The next prime is 23455343. The reversal of 23455320 is 2355432.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 23 ways as a sum of consecutive naturals, for example, 3886 + ... + 7874.

Almost surely, 2^23455320 is an apocalyptic number.

23455320 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 23455320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40937400).

23455320 is an abundant number, since it is smaller than the sum of its proper divisors (58419480).

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

23455320 is a wasteful number, since it uses less digits than its factorization.

23455320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017 (or 4006 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 23455320 is about 4843.0692747472. The cubic root of 23455320 is about 286.2510713587.

The spelling of 23455320 in words is "twenty-three million, four hundred fifty-five thousand, three hundred twenty".