40070249 has 2 divisors, whose sum is σ = 40070250. Its totient is φ = 40070248.

The previous prime is 40070237. The next prime is 40070269. The reversal of 40070249 is 94207004.

40070249 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., 36240400 + 3829849 = 6020^2 + 1957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40070249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40070269) 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, 20035124 + 20035125.

It is an arithmetic number, because the mean of its divisors is an integer number (20035125).

Almost surely, 2^40070249 is an apocalyptic number.

It is an amenable number.

40070249 is a deficient number, since it is larger than the sum of its proper divisors (1).

40070249 is an equidigital number, since it uses as much as digits as its factorization.

40070249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40070249 is about 6330.1065551853. The cubic root of 40070249 is about 342.1952790806.

The spelling of 40070249 in words is "forty million, seventy thousand, two hundred forty-nine".