223038140 has 24 divisors (see below), whose sum is σ = 504409920. Its totient is φ = 82352448.

The previous prime is 223038139. The next prime is 223038187. The reversal of 223038140 is 41830322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428660 + ... + 429179.

It is an arithmetic number, because the mean of its divisors is an integer number (21017080).

Almost surely, 2^223038140 is an apocalyptic number.

223038140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223038140 is an abundant number, since it is smaller than the sum of its proper divisors (281371780).

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

223038140 is a wasteful number, since it uses less digits than its factorization.

223038140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857861 (or 857859 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 223038140 is about 14934.4614901241. The cubic root of 223038140 is about 606.4472693489.

Adding to 223038140 its reverse (41830322), we get a palindrome (264868462).

The spelling of 223038140 in words is "two hundred twenty-three million, thirty-eight thousand, one hundred forty".