223646412 has 24 divisors (see below), whose sum is σ = 569282112. Its totient is φ = 67771600.

The previous prime is 223646333. The next prime is 223646419. The reversal of 223646412 is 214646322.

It is a super-3 number, since 3×223646412³ (a number of 26 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 223646412.

It is not an unprimeable number, because it can be changed into a prime (223646419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847014 + ... + 847277.

It is an arithmetic number, because the mean of its divisors is an integer number (23720088).

Almost surely, 2^223646412 is an apocalyptic number.

223646412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223646412 is an abundant number, since it is smaller than the sum of its proper divisors (345635700).

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

223646412 is a wasteful number, since it uses less digits than its factorization.

223646412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694309 (or 1694307 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 223646412 is about 14954.8123358336. The cubic root of 223646412 is about 606.9980720925.

The spelling of 223646412 in words is "two hundred twenty-three million, six hundred forty-six thousand, four hundred twelve".