23524020 has 120 divisors (see below), whose sum is σ = 79543464. Its totient is φ = 5785344.

The previous prime is 23524019. The next prime is 23524043. The reversal of 23524020 is 2042532.

It can be written as a sum of positive squares in 4 ways, for example, as 599076 + 22924944 = 774^2 + 4788^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23523984 and 23524002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20502 + ... + 21618.

Almost surely, 2^23524020 is an apocalyptic number.

23524020 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 23524020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39771732).

23524020 is an abundant number, since it is smaller than the sum of its proper divisors (56019444).

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

23524020 is a wasteful number, since it uses less digits than its factorization.

23524020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23524020 is about 4850.1566984995. The cubic root of 23524020 is about 286.5302728352.

Adding to 23524020 its reverse (2042532), we get a palindrome (25566552).

The spelling of 23524020 in words is "twenty-three million, five hundred twenty-four thousand, twenty".