40036169 has 4 divisors (see below), whose sum is σ = 41776896. Its totient is φ = 38295444.

The previous prime is 40036163. The next prime is 40036181. The reversal of 40036169 is 96163004.

40036169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40036169 - 2⁸ = 40035913 is a prime.

It is a super-2 number, since 2×40036169² = 3205789656393122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40036163) 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 3 ways as a sum of consecutive naturals, for example, 870329 + ... + 870374.

It is an arithmetic number, because the mean of its divisors is an integer number (10444224).

Almost surely, 2^40036169 is an apocalyptic number.

It is an amenable number.

40036169 is a deficient number, since it is larger than the sum of its proper divisors (1740727).

40036169 is a wasteful number, since it uses less digits than its factorization.

40036169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740726.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40036169 is about 6327.4140847585. The cubic root of 40036169 is about 342.0982384817.

The spelling of 40036169 in words is "forty million, thirty-six thousand, one hundred sixty-nine".