8423520 has 192 divisors, whose sum is σ = 31933440. Its totient is φ = 1824768.

The previous prime is 8423507. The next prime is 8423549. The reversal of 8423520 is 253248.

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

It is a d-powerful number, because it can be written as 8⁵ + 4³ + 2¹¹ + 3³ + 5 + 2²³ + 0 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77226 + ... + 77334.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

Almost surely, 2^8423520 is an apocalyptic number.

8423520 is a gapful number since it is divisible by the number (80) 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 8423520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15966720).

8423520 is an abundant number, since it is smaller than the sum of its proper divisors (23509920).

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

8423520 is a wasteful number, since it uses less digits than its factorization.

8423520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 8423520 is about 2902.3300983865. The cubic root of 8423520 is about 203.4688218790.

Adding to 8423520 its reverse (253248), we get a palindrome (8676768).

It can be divided in two parts, 84235 and 20, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 8423520 in words is "eight million, four hundred twenty-three thousand, five hundred twenty".