224901807138 has 18 divisors (see below), whose sum is σ = 487291608219. Its totient is φ = 74966598372.

The previous prime is 224901807077. The next prime is 224901807157. The reversal of 224901807138 is 831708109422.

It is a happy number.

224901807138 is a `hidden beast` number, since 22 + 490 + 1 + 8 + 0 + 7 + 138 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112450903569 + 112450903569 = 335337^2 + 335337^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=335337.

It is a junction number, because it is equal to n+sod(n) for n = 224901807093 and 224901807102.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 1956133 + ... + 2067911.

Almost surely, 2^224901807138 is an apocalyptic number.

224901807138 is an abundant number, since it is smaller than the sum of its proper divisors (262389801081).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

224901807138 is an frugal number, since it uses more digits than its factorization.

224901807138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223566 (or 111784 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 224901807138 in words is "two hundred twenty-four billion, nine hundred one million, eight hundred seven thousand, one hundred thirty-eight".