223869776 has 40 divisors (see below), whose sum is σ = 468589800. Its totient is φ = 102998016.

The previous prime is 223869769. The next prime is 223869781. The reversal of 223869776 is 677968322.

It can be written as a sum of positive squares in 4 ways, for example, as 1263376 + 222606400 = 1124^2 + 14920^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71900 + ... + 74948.

It is an arithmetic number, because the mean of its divisors is an integer number (11714745).

Almost surely, 2^223869776 is an apocalyptic number.

223869776 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 223869776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234294900).

223869776 is an abundant number, since it is smaller than the sum of its proper divisors (244720024).

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

223869776 is a wasteful number, since it uses less digits than its factorization.

223869776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423 (or 3417 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 223869776 is about 14962.2784361206. The cubic root of 223869776 is about 607.2000820486.

The spelling of 223869776 in words is "two hundred twenty-three million, eight hundred sixty-nine thousand, seven hundred seventy-six".