223540452 has 24 divisors (see below), whose sum is σ = 579549600. Its totient is φ = 74513448.

The previous prime is 223540367. The next prime is 223540459. The reversal of 223540452 is 254045322.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (223540459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034802 + ... + 1035017.

It is an arithmetic number, because the mean of its divisors is an integer number (24147900).

Almost surely, 2^223540452 is an apocalyptic number.

It is an amenable number.

223540452 is an abundant number, since it is smaller than the sum of its proper divisors (356009148).

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

223540452 is a wasteful number, since it uses less digits than its factorization.

223540452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069832 (or 2069824 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 223540452 is about 14951.2692437799. The cubic root of 223540452 is about 606.9021950406.

Adding to 223540452 its reverse (254045322), we get a palindrome (477585774).

The spelling of 223540452 in words is "two hundred twenty-three million, five hundred forty thousand, four hundred fifty-two".