441400378138 has 16 divisors (see below), whose sum is σ = 662739877800. Its totient is φ = 220487170816.

The previous prime is 441400378117. The next prime is 441400378151. The reversal of 441400378138 is 831873004144.

It can be written as a sum of positive squares in 4 ways, for example, as 364003468929 + 77396909209 = 603327^2 + 278203^2 .

It is a junction number, because it is equal to n+sod(n) for n = 441400378094 and 441400378103.

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 7 ways as a sum of consecutive naturals, for example, 11895438 + ... + 11932486.

Almost surely, 2^441400378138 is an apocalyptic number.

441400378138 is a deficient number, since it is larger than the sum of its proper divisors (221339499662).

441400378138 is a wasteful number, since it uses less digits than its factorization.

441400378138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42641.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 441400378138 in words is "four hundred forty-one billion, four hundred million, three hundred seventy-eight thousand, one hundred thirty-eight".