438866122 has 4 divisors (see below), whose sum is σ = 658299186. Its totient is φ = 219433060.

The previous prime is 438866117. The next prime is 438866143. The reversal of 438866122 is 221668834.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 379899081 + 58967041 = 19491^2 + 7679^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109716529 + ... + 109716532.

Almost surely, 2^438866122 is an apocalyptic number.

438866122 is a deficient number, since it is larger than the sum of its proper divisors (219433064).

438866122 is a wasteful number, since it uses less digits than its factorization.

438866122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219433063.

The product of its digits is 110592, while the sum is 40.

The square root of 438866122 is about 20949.1317719852. The cubic root of 438866122 is about 759.9365840438.

The spelling of 438866122 in words is "four hundred thirty-eight million, eight hundred sixty-six thousand, one hundred twenty-two".