224255138 has 16 divisors (see below), whose sum is σ = 356076000. Its totient is φ = 105629472.

The previous prime is 224255131. The next prime is 224255149. The reversal of 224255138 is 831552422.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224255131) 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, 9683 + ... + 23286.

It is an arithmetic number, because the mean of its divisors is an integer number (22254750).

Almost surely, 2^224255138 is an apocalyptic number.

224255138 is a deficient number, since it is larger than the sum of its proper divisors (131820862).

224255138 is a wasteful number, since it uses less digits than its factorization.

224255138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33169.

The product of its digits is 19200, while the sum is 32.

The square root of 224255138 is about 14975.1506837160. The cubic root of 224255138 is about 607.5482870163.

The spelling of 224255138 in words is "two hundred twenty-four million, two hundred fifty-five thousand, one hundred thirty-eight".