40352605 has 4 divisors (see below), whose sum is σ = 48423132. Its totient is φ = 32282080.

The previous prime is 40352597. The next prime is 40352621. The reversal of 40352605 is 50625304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7851204 + 32501401 = 2802^2 + 5701^2 .

It is not a de Polignac number, because 40352605 - 2³ = 40352597 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 40352605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4035256 + ... + 4035265.

It is an arithmetic number, because the mean of its divisors is an integer number (12105783).

Almost surely, 2^40352605 is an apocalyptic number.

It is an amenable number.

40352605 is a deficient number, since it is larger than the sum of its proper divisors (8070527).

40352605 is an equidigital number, since it uses as much as digits as its factorization.

40352605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070526.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 40352605 is about 6352.3700301541. The cubic root of 40352605 is about 342.9971610233.

Adding to 40352605 its reverse (50625304), we get a palindrome (90977909).

The spelling of 40352605 in words is "forty million, three hundred fifty-two thousand, six hundred five".