223465536 has 168 divisors, whose sum is σ = 770818880. Its totient is φ = 60466176.

The previous prime is 223465513. The next prime is 223465547. The reversal of 223465536 is 635564322.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 223465536.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75150 + ... + 78066.

Almost surely, 2^223465536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223465536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385409440).

223465536 is an abundant number, since it is smaller than the sum of its proper divisors (547353344).

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

223465536 is a wasteful number, since it uses less digits than its factorization.

223465536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961 (or 2948 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 223465536 is about 14948.7636947006. The cubic root of 223465536 is about 606.8343896173.

The spelling of 223465536 in words is "two hundred twenty-three million, four hundred sixty-five thousand, five hundred thirty-six".