440447467138 has 16 divisors (see below), whose sum is σ = 755104438080. Its totient is φ = 188750290896.

The previous prime is 440447467133. The next prime is 440447467153. The reversal of 440447467138 is 831764744044.

It is a super-2 number, since 2×440447467138² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (440447467133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862293 + ... + 1274536.

It is an arithmetic number, because the mean of its divisors is an integer number (47194027380).

Almost surely, 2^440447467138 is an apocalyptic number.

440447467138 is a deficient number, since it is larger than the sum of its proper divisors (314656970942).

440447467138 is a wasteful number, since it uses less digits than its factorization.

440447467138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151561.

The product of its (nonzero) digits is 7225344, while the sum is 52.

The spelling of 440447467138 in words is "four hundred forty billion, four hundred forty-seven million, four hundred sixty-seven thousand, one hundred thirty-eight".