224899639 has 4 divisors (see below), whose sum is σ = 225037024. Its totient is φ = 224762256.

The previous prime is 224899583. The next prime is 224899643. The reversal of 224899639 is 936998422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936998422 = 2 ⋅468499211.

It is a cyclic number.

It is not a de Polignac number, because 224899639 - 2¹⁷ = 224768567 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 (224899039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66207 + ... + 69520.

It is an arithmetic number, because the mean of its divisors is an integer number (56259256).

Almost surely, 2^224899639 is an apocalyptic number.

224899639 is a deficient number, since it is larger than the sum of its proper divisors (137385).

224899639 is a wasteful number, since it uses less digits than its factorization.

224899639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137384.

The product of its digits is 1679616, while the sum is 52.

The square root of 224899639 is about 14996.6542602008. The cubic root of 224899639 is about 608.1297541269.

The spelling of 224899639 in words is "two hundred twenty-four million, eight hundred ninety-nine thousand, six hundred thirty-nine".