450224138 has 16 divisors (see below), whose sum is σ = 831183360. Its totient is φ = 178110576.

The previous prime is 450224119. The next prime is 450224143. The reversal of 450224138 is 831422054.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 450224138.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1236698 + ... + 1237061.

It is an arithmetic number, because the mean of its divisors is an integer number (51948960).

Almost surely, 2^450224138 is an apocalyptic number.

450224138 is a deficient number, since it is larger than the sum of its proper divisors (380959222).

450224138 is a wasteful number, since it uses less digits than its factorization.

450224138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473781.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 450224138 is about 21218.4857612413. The cubic root of 450224138 is about 766.4366402118.

The spelling of 450224138 in words is "four hundred fifty million, two hundred twenty-four thousand, one hundred thirty-eight".