223378220 has 48 divisors (see below), whose sum is σ = 506771328. Its totient is φ = 82218240.

The previous prime is 223378153. The next prime is 223378223. The reversal of 223378220 is 22873322.

223378220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (223378223) 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, 94250 + ... + 96590.

It is an arithmetic number, because the mean of its divisors is an integer number (10557736).

Almost surely, 2^223378220 is an apocalyptic number.

223378220 is a gapful number since it is divisible by the number (20) 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 223378220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253385664).

223378220 is an abundant number, since it is smaller than the sum of its proper divisors (283393108).

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

223378220 is a wasteful number, since it uses less digits than its factorization.

223378220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 223378220 is about 14945.8429002850. The cubic root of 223378220 is about 606.7553420004.

The spelling of 223378220 in words is "two hundred twenty-three million, three hundred seventy-eight thousand, two hundred twenty".