940814449 has 2 divisors, whose sum is σ = 940814450. Its totient is φ = 940814448.

The previous prime is 940814447. The next prime is 940814453. The reversal of 940814449 is 944418049.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626000400 + 314814049 = 25020^2 + 17743^2 .

It is an emirp because it is prime and its reverse (944418049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 940814449 - 2¹ = 940814447 is a prime.

Together with 940814447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (940814447) 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, 470407224 + 470407225.

It is an arithmetic number, because the mean of its divisors is an integer number (470407225).

Almost surely, 2^940814449 is an apocalyptic number.

It is an amenable number.

940814449 is a deficient number, since it is larger than the sum of its proper divisors (1).

940814449 is an equidigital number, since it uses as much as digits as its factorization.

940814449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 940814449 is about 30672.6987563859. The cubic root of 940814449 is about 979.8689429769.

The spelling of 940814449 in words is "nine hundred forty million, eight hundred fourteen thousand, four hundred forty-nine".