416644138 has 4 divisors (see below), whose sum is σ = 624966210. Its totient is φ = 208322068.

The previous prime is 416644133. The next prime is 416644139. The reversal of 416644138 is 831446614.

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., 290463849 + 126180289 = 17043^2 + 11233^2 .

It is a junction number, because it is equal to n+sod(n) for n = 416644097 and 416644106.

It is not an unprimeable number, because it can be changed into a prime (416644133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104161033 + ... + 104161036.

Almost surely, 2^416644138 is an apocalyptic number.

416644138 is a deficient number, since it is larger than the sum of its proper divisors (208322072).

416644138 is a wasteful number, since it uses less digits than its factorization.

416644138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208322071.

The product of its digits is 55296, while the sum is 37.

The square root of 416644138 is about 20411.8626783545. The cubic root of 416644138 is about 746.8873295071.

The spelling of 416644138 in words is "four hundred sixteen million, six hundred forty-four thousand, one hundred thirty-eight".