440002125 has 40 divisors (see below), whose sum is σ = 820313208. Its totient is φ = 234662400.

The previous prime is 440002111. The next prime is 440002141. The reversal of 440002125 is 521200044.

It can be written as a sum of positive squares in 4 ways, for example, as 12257001 + 427745124 = 3501^2 + 20682^2 .

It is not a de Polignac number, because 440002125 - 2¹⁰ = 440001101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440002098 and 440002107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11604 + ... + 31853.

Almost surely, 2^440002125 is an apocalyptic number.

440002125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

440002125 is a deficient number, since it is larger than the sum of its proper divisors (380311083).

440002125 is an equidigital number, since it uses as much as digits as its factorization.

440002125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43484 (or 43465 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 440002125 is about 20976.2276160419. The cubic root of 440002125 is about 760.5917165858.

Adding to 440002125 its reverse (521200044), we get a palindrome (961202169).

The spelling of 440002125 in words is "four hundred forty million, two thousand, one hundred twenty-five".