4040125 has 8 divisors (see below), whose sum is σ = 5042232. Its totient is φ = 3232000.

The previous prime is 4040123. The next prime is 4040129. The reversal of 4040125 is 5210404.

It can be written as a sum of positive squares in 4 ways, for example, as 311364 + 3728761 = 558^2 + 1931^2 .

It is not a de Polignac number, because 4040125 - 2¹ = 4040123 is a prime.

It is a super-2 number, since 2×4040125² = 32645220031250, 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 = 4040099 and 4040108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040123) 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, 16036 + ... + 16285.

It is an arithmetic number, because the mean of its divisors is an integer number (630279).

Almost surely, 2^4040125 is an apocalyptic number.

It is an amenable number.

4040125 is a deficient number, since it is larger than the sum of its proper divisors (1002107).

4040125 is an equidigital number, since it uses as much as digits as its factorization.

4040125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32336 (or 32326 counting only the distinct ones).

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

The square root of 4040125 is about 2010.0062188959. The cubic root of 4040125 is about 159.2691274290.

Adding to 4040125 its reverse (5210404), we get a palindrome (9250529).

It can be divided in two parts, 40401 and 25, that multiplied together give a square (1010025 = 1005²).

The spelling of 4040125 in words is "four million, forty thousand, one hundred twenty-five".