40045325 has 6 divisors (see below), whose sum is σ = 49656234. Its totient is φ = 32036240.

The previous prime is 40045321. The next prime is 40045381. The reversal of 40045325 is 52354004.

It can be written as a sum of positive squares in 3 ways, for example, as 7086244 + 32959081 = 2662^2 + 5741^2 .

It is not a de Polignac number, because 40045325 - 2² = 40045321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40045325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40045321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 800882 + ... + 800931.

It is an arithmetic number, because the mean of its divisors is an integer number (8276039).

Almost surely, 2^40045325 is an apocalyptic number.

It is an amenable number.

40045325 is a deficient number, since it is larger than the sum of its proper divisors (9610909).

40045325 is a wasteful number, since it uses less digits than its factorization.

40045325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601823 (or 1601818 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 40045325 is about 6328.1375617159. The cubic root of 40045325 is about 342.1243150087.

Adding to 40045325 its reverse (52354004), we get a palindrome (92399329).

The spelling of 40045325 in words is "forty million, forty-five thousand, three hundred twenty-five".