223866828 has 120 divisors (see below), whose sum is σ = 610002624. Its totient is φ = 71539200.

The previous prime is 223866823. The next prime is 223866833. The reversal of 223866828 is 828668322.

It is an interprime number because it is at equal distance from previous prime (223866823) and next prime (223866833).

It is not an unprimeable number, because it can be changed into a prime (223866823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 928788 + ... + 929028.

Almost surely, 2^223866828 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 223866828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305001312).

223866828 is an abundant number, since it is smaller than the sum of its proper divisors (386135796).

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

223866828 is a wasteful number, since it uses less digits than its factorization.

223866828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 354 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 223866828 is about 14962.1799213885. The cubic root of 223866828 is about 607.1974167585.

The spelling of 223866828 in words is "two hundred twenty-three million, eight hundred sixty-six thousand, eight hundred twenty-eight".