223648628 has 24 divisors (see below), whose sum is σ = 448185024. Its totient is φ = 95659200.

The previous prime is 223648627. The next prime is 223648657. The reversal of 223648628 is 826846322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223648627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6923 + ... + 22253.

It is an arithmetic number, because the mean of its divisors is an integer number (18674376).

Almost surely, 2^223648628 is an apocalyptic number.

223648628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

223648628 is an abundant number, since it is smaller than the sum of its proper divisors (224536396).

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

223648628 is a wasteful number, since it uses less digits than its factorization.

223648628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15863 (or 15861 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 223648628 is about 14954.8864255132. The cubic root of 223648628 is about 607.0000768989. Note that the first 4 decimals are identical.

The spelling of 223648628 in words is "two hundred twenty-three million, six hundred forty-eight thousand, six hundred twenty-eight".