4400125 has 8 divisors (see below), whose sum is σ = 5491512. Its totient is φ = 3520000.

The previous prime is 4400111. The next prime is 4400129. The reversal of 4400125 is 5210044.

It can be written as a sum of positive squares in 4 ways, for example, as 131769 + 4268356 = 363^2 + 2066^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4400125 is a prime.

It is a super-2 number, since 2×4400125² = 38722200031250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4400099 and 4400108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17476 + ... + 17725.

It is an arithmetic number, because the mean of its divisors is an integer number (686439).

Almost surely, 2^4400125 is an apocalyptic number.

It is an amenable number.

4400125 is a deficient number, since it is larger than the sum of its proper divisors (1091387).

4400125 is an equidigital number, since it uses as much as digits as its factorization.

4400125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35216 (or 35206 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4400125 is about 2097.6474918346. The cubic root of 4400125 is about 163.8658058503.

Adding to 4400125 its reverse (5210044), we get a palindrome (9610169).

The spelling of 4400125 in words is "four million, four hundred thousand, one hundred twenty-five".