40124449 has 2 divisors, whose sum is σ = 40124450. Its totient is φ = 40124448.

The previous prime is 40124419. The next prime is 40124453. The reversal of 40124449 is 94442104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25070049 + 15054400 = 5007^2 + 3880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40124449 is a prime.

It is not a weakly prime, because it can be changed into another prime (40124419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20062224 + 20062225.

It is an arithmetic number, because the mean of its divisors is an integer number (20062225).

Almost surely, 2^40124449 is an apocalyptic number.

It is an amenable number.

40124449 is a deficient number, since it is larger than the sum of its proper divisors (1).

40124449 is an equidigital number, since it uses as much as digits as its factorization.

40124449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40124449 is about 6334.3862370399. The cubic root of 40124449 is about 342.3494968065.

The spelling of 40124449 in words is "forty million, one hundred twenty-four thousand, four hundred forty-nine".