223452520 has 16 divisors (see below), whose sum is σ = 502768260. Its totient is φ = 89380992.

The previous prime is 223452497. The next prime is 223452533. The reversal of 223452520 is 25254322.

It is a happy number.

223452520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216619524 + 6832996 = 14718^2 + 2614^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793117 + ... + 2793196.

Almost surely, 2^223452520 is an apocalyptic number.

223452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223452520 is an abundant number, since it is smaller than the sum of its proper divisors (279315740).

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

223452520 is a wasteful number, since it uses less digits than its factorization.

223452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586324 (or 5586320 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 223452520 is about 14948.3283346333. The cubic root of 223452520 is about 606.8226074727.

The spelling of 223452520 in words is "two hundred twenty-three million, four hundred fifty-two thousand, five hundred twenty".