40364969 has 2 divisors, whose sum is σ = 40364970. Its totient is φ = 40364968.

The previous prime is 40364957. The next prime is 40364993. The reversal of 40364969 is 96946304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 2849344 = 6125^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 40364969 - 2⁸ = 40364713 is a prime.

It is a super-2 number, since 2×40364969² = 3258661444741922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40364939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20182484 + 20182485.

It is an arithmetic number, because the mean of its divisors is an integer number (20182485).

Almost surely, 2^40364969 is an apocalyptic number.

It is an amenable number.

40364969 is a deficient number, since it is larger than the sum of its proper divisors (1).

40364969 is an equidigital number, since it uses as much as digits as its factorization.

40364969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 40364969 is about 6353.3431357042. The cubic root of 40364969 is about 343.0321887813.

The spelling of 40364969 in words is "forty million, three hundred sixty-four thousand, nine hundred sixty-nine".