223213536 has 384 divisors, whose sum is σ = 853493760. Its totient is φ = 55074816.

The previous prime is 223213531. The next prime is 223213541. The reversal of 223213536 is 635312322.

It is an interprime number because it is at equal distance from previous prime (223213531) and next prime (223213541).

It is a super-3 number, since 3×223213536³ (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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (223213531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1336525 + ... + 1336691.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 2^223213536 is an apocalyptic number.

223213536 is a gapful number since it is divisible by the number (26) 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 223213536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426746880).

223213536 is an abundant number, since it is smaller than the sum of its proper divisors (630280224).

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

223213536 is a wasteful number, since it uses less digits than its factorization.

223213536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 209 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 223213536 is about 14940.3325264199. The cubic root of 223213536 is about 606.6061966590.

Adding to 223213536 its reverse (635312322), we get a palindrome (858525858).

The spelling of 223213536 in words is "two hundred twenty-three million, two hundred thirteen thousand, five hundred thirty-six".