224942399 has 4 divisors (see below), whose sum is σ = 245391720. Its totient is φ = 204493080.

The previous prime is 224942381. The next prime is 224942429. The reversal of 224942399 is 993249422.

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

It is not a de Polignac number, because 224942399 - 2¹⁶ = 224876863 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 (224942339) 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, 10224644 + ... + 10224665.

It is an arithmetic number, because the mean of its divisors is an integer number (61347930).

Almost surely, 2^224942399 is an apocalyptic number.

224942399 is a deficient number, since it is larger than the sum of its proper divisors (20449321).

224942399 is a wasteful number, since it uses less digits than its factorization.

224942399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20449320.

The product of its digits is 279936, while the sum is 44.

The square root of 224942399 is about 14998.0798437667. The cubic root of 224942399 is about 608.1682927695.

The spelling of 224942399 in words is "two hundred twenty-four million, nine hundred forty-two thousand, three hundred ninety-nine".