223524140 has 48 divisors (see below), whose sum is σ = 539482944. Its totient is φ = 76204800.

The previous prime is 223524139. The next prime is 223524149. The reversal of 223524140 is 41425322.

It is a happy number.

223524140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (223524149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20930 + ... + 29750.

It is an arithmetic number, because the mean of its divisors is an integer number (11239228).

Almost surely, 2^223524140 is an apocalyptic number.

223524140 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 223524140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269741472).

223524140 is an abundant number, since it is smaller than the sum of its proper divisors (315958804).

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

223524140 is a wasteful number, since it uses less digits than its factorization.

223524140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018 (or 9016 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 223524140 is about 14950.7237283016. The cubic root of 223524140 is about 606.8874325680.

Adding to 223524140 its reverse (41425322), we get a palindrome (264949462).

The spelling of 223524140 in words is "two hundred twenty-three million, five hundred twenty-four thousand, one hundred forty".