40000369 has 2 divisors, whose sum is σ = 40000370. Its totient is φ = 40000368.

The previous prime is 40000361. The next prime is 40000409. The reversal of 40000369 is 96300004.

40000369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35247969 + 4752400 = 5937^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 40000369 - 2³ = 40000361 is a prime.

It is a super-2 number, since 2×40000369² = 3200059040272322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40000361) 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 as a sum of consecutive naturals, namely, 20000184 + 20000185.

It is an arithmetic number, because the mean of its divisors is an integer number (20000185).

Almost surely, 2^40000369 is an apocalyptic number.

It is an amenable number.

40000369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000369 is an equidigital number, since it uses as much as digits as its factorization.

40000369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 40000369 is about 6324.5844922809. The cubic root of 40000369 is about 341.9962409673.

The spelling of 40000369 in words is "forty million, three hundred sixty-nine", and thus it is an aban number.