223606812 has 48 divisors (see below), whose sum is σ = 612968832. Its totient is φ = 62546880.

The previous prime is 223606807. The next prime is 223606819. The reversal of 223606812 is 218606322.

It is a self number, because there is not a number n which added to its sum of digits gives 223606812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223606819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63438 + ... + 66869.

It is an arithmetic number, because the mean of its divisors is an integer number (12770184).

Almost surely, 2^223606812 is an apocalyptic number.

223606812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223606812 is an abundant number, since it is smaller than the sum of its proper divisors (389362020).

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

223606812 is a wasteful number, since it uses less digits than its factorization.

223606812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130338 (or 130336 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 223606812 is about 14953.4882886904. The cubic root of 223606812 is about 606.9622438964.

The spelling of 223606812 in words is "two hundred twenty-three million, six hundred six thousand, eight hundred twelve".