224072745 has 32 divisors (see below), whose sum is σ = 386975232. Its totient is φ = 110061312.

The previous prime is 224072741. The next prime is 224072747. The reversal of 224072745 is 547270422.

It is a happy number.

It is not a de Polignac number, because 224072745 - 2² = 224072741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224072741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107584 + ... + 109646.

It is an arithmetic number, because the mean of its divisors is an integer number (12092976).

Almost surely, 2^224072745 is an apocalyptic number.

It is an amenable number.

224072745 is a deficient number, since it is larger than the sum of its proper divisors (162902487).

224072745 is a wasteful number, since it uses less digits than its factorization.

224072745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 224072745 is about 14969.0595897003. The cubic root of 224072745 is about 607.3835303146.

It can be divided in two parts, 22407 and 2745, that added together give a palindrome (25152).

The spelling of 224072745 in words is "two hundred twenty-four million, seventy-two thousand, seven hundred forty-five".