205224424 has 16 divisors (see below), whose sum is σ = 385084800. Its totient is φ = 102535152.

The previous prime is 205224407. The next prime is 205224457. The reversal of 205224424 is 424422502.

It is a super-2 number, since 2×205224424² = 84234128412263552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2599 + ... + 20425.

It is an arithmetic number, because the mean of its divisors is an integer number (24067800).

Almost surely, 2^205224424 is an apocalyptic number.

It is an amenable number.

205224424 is a deficient number, since it is larger than the sum of its proper divisors (179860376).

205224424 is a wasteful number, since it uses less digits than its factorization.

205224424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19272 (or 19268 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 205224424 is about 14325.6561455313. The cubic root of 205224424 is about 589.8519440811.

Adding to 205224424 its reverse (424422502), we get a palindrome (629646926).

The spelling of 205224424 in words is "two hundred five million, two hundred twenty-four thousand, four hundred twenty-four".