40449601 has 2 divisors, whose sum is σ = 40449602. Its totient is φ = 40449600.

The previous prime is 40449587. The next prime is 40449631. The reversal of 40449601 is 10694404.

It is a Cunningham number, because it is equal to 6360²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40449600 + 1 = 6360^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 40449601 - 2⁹ = 40449089 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40449601.

It is not a weakly prime, because it can be changed into another prime (40449631) 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 as a sum of consecutive naturals, namely, 20224800 + 20224801.

It is an arithmetic number, because the mean of its divisors is an integer number (20224801).

Almost surely, 2^40449601 is an apocalyptic number.

It is an amenable number.

40449601 is a deficient number, since it is larger than the sum of its proper divisors (1).

40449601 is an equidigital number, since it uses as much as digits as its factorization.

40449601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 40449601 is about 6360.0000786164. Note that the first 4 decimals coincide. The cubic root of 40449601 is about 343.2717631342.

It can be divided in two parts, 404 and 49601, that added together give a palindrome (50005).

The spelling of 40449601 in words is "forty million, four hundred forty-nine thousand, six hundred one".