940449845 has 16 divisors (see below), whose sum is σ = 1177806960. Its totient is φ = 719975424.

The previous prime is 940449833. The next prime is 940449847. The reversal of 940449845 is 548944049.

It can be written as a sum of positive squares in 8 ways, for example, as 366416164 + 574033681 = 19142^2 + 23959^2 .

It is a cyclic number.

It is not a de Polignac number, because 940449845 - 2⁶ = 940449781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 940449845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940449847) 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 in 15 ways as a sum of consecutive naturals, for example, 12314 + ... + 45083.

It is an arithmetic number, because the mean of its divisors is an integer number (73612935).

Almost surely, 2^940449845 is an apocalyptic number.

It is an amenable number.

940449845 is a deficient number, since it is larger than the sum of its proper divisors (237357115).

940449845 is a wasteful number, since it uses less digits than its factorization.

940449845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57544.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 940449845 is about 30666.7547190765. The cubic root of 940449845 is about 979.7423468849.

The spelling of 940449845 in words is "nine hundred forty million, four hundred forty-nine thousand, eight hundred forty-five".