224240913 has 32 divisors (see below), whose sum is σ = 358695680. Its totient is φ = 137635200.

The previous prime is 224240903. The next prime is 224240971. The reversal of 224240913 is 319042422.

224240913 is a `hidden beast` number, since 2 + 242 + 409 + 13 = 666.

224240913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224240913 - 2⁵ = 224240881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224240903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210420 + ... + 211482.

It is an arithmetic number, because the mean of its divisors is an integer number (11209240).

Almost surely, 2^224240913 is an apocalyptic number.

It is an amenable number.

224240913 is a deficient number, since it is larger than the sum of its proper divisors (134454767).

224240913 is a wasteful number, since it uses less digits than its factorization.

224240913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 224240913 is about 14974.6757226993. The cubic root of 224240913 is about 607.5354407003.

It can be divided in two parts, 2242409 and 13, that added together give a palindrome (2242422).

The spelling of 224240913 in words is "two hundred twenty-four million, two hundred forty thousand, nine hundred thirteen".