224312194 has 4 divisors (see below), whose sum is σ = 336468294. Its totient is φ = 112156096.

The previous prime is 224312183. The next prime is 224312197. The reversal of 224312194 is 491213422.

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

It can be written as a sum of positive squares in only one way, i.e., 195636169 + 28676025 = 13987^2 + 5355^2 .

It is not an unprimeable number, because it can be changed into a prime (224312197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56078047 + ... + 56078050.

Almost surely, 2^224312194 is an apocalyptic number.

224312194 is a deficient number, since it is larger than the sum of its proper divisors (112156100).

224312194 is a wasteful number, since it uses less digits than its factorization.

224312194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112156099.

The product of its digits is 3456, while the sum is 28.

The square root of 224312194 is about 14977.0555851275. The cubic root of 224312194 is about 607.5998077023.

The spelling of 224312194 in words is "two hundred twenty-four million, three hundred twelve thousand, one hundred ninety-four".