440352161325 has 18 divisors (see below), whose sum is σ = 788719649354. Its totient is φ = 234854485920.

The previous prime is 440352161311. The next prime is 440352161363. The reversal of 440352161325 is 523161253044.

440352161325 is a `hidden beast` number, since 4 + 4 + 0 + 35 + 2 + 1 + 613 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 53614939401 + 386737221924 = 231549^2 + 621882^2 .

It is not a de Polignac number, because 440352161325 - 2⁶ = 440352161261 is a prime.

It is a super-3 number, since 3×440352161325³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian 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 440352161325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 978560134 + ... + 978560583.

Almost surely, 2^440352161325 is an apocalyptic number.

440352161325 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

440352161325 is a deficient number, since it is larger than the sum of its proper divisors (348367488029).

440352161325 is a wasteful number, since it uses less digits than its factorization.

440352161325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957120733 (or 1957120725 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 440352161325 in words is "four hundred forty billion, three hundred fifty-two million, one hundred sixty-one thousand, three hundred twenty-five".