223236432 has 160 divisors (see below), whose sum is σ = 673171200. Its totient is φ = 70737408.

The previous prime is 223236421. The next prime is 223236443. The reversal of 223236432 is 234632322.

223236432 is a `hidden beast` number, since 223 + 2 + 3 + 6 + 432 = 666.

It is an interprime number because it is at equal distance from previous prime (223236421) and next prime (223236443).

It is a super-3 number, since 3×223236432³ (a number of 26 digits) contains 333 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 223236396 and 223236405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1290298 + ... + 1290470.

It is an arithmetic number, because the mean of its divisors is an integer number (4207320).

Almost surely, 2^223236432 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 223236432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336585600).

223236432 is an abundant number, since it is smaller than the sum of its proper divisors (449934768).

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

223236432 is a wasteful number, since it uses less digits than its factorization.

223236432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 310 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 223236432 is about 14941.0987547770. The cubic root of 223236432 is about 606.6269367104.

Adding to 223236432 its reverse (234632322), we get a palindrome (457868754).

The spelling of 223236432 in words is "two hundred twenty-three million, two hundred thirty-six thousand, four hundred thirty-two".