224778223 has 4 divisors (see below), whose sum is σ = 225056880. Its totient is φ = 224499568.

The previous prime is 224778221. The next prime is 224778251. The reversal of 224778223 is 322877422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 224778223 - 2¹ = 224778221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224778221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138115 + ... + 139732.

It is an arithmetic number, because the mean of its divisors is an integer number (56264220).

Almost surely, 2^224778223 is an apocalyptic number.

224778223 is a deficient number, since it is larger than the sum of its proper divisors (278657).

224778223 is an equidigital number, since it uses as much as digits as its factorization.

224778223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278656.

The product of its digits is 75264, while the sum is 37.

The square root of 224778223 is about 14992.6056107669. The cubic root of 224778223 is about 608.0202979359.

The spelling of 224778223 in words is "two hundred twenty-four million, seven hundred seventy-eight thousand, two hundred twenty-three".