1170440649 has 12 divisors (see below), whose sum is σ = 1932156096. Its totient is φ = 668823192.

The previous prime is 1170440639. The next prime is 1170440657. The reversal of 1170440649 is 9460440711.

1170440649 is a `hidden beast` number, since 1 + 1 + 7 + 0 + 4 + 4 + 0 + 649 = 666.

It is not a de Polignac number, because 1170440649 - 2⁹ = 1170440137 is a prime.

It is a super-3 number, since 3×1170440649³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1170440639) 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 in 11 ways as a sum of consecutive naturals, for example, 9289149 + ... + 9289274.

It is an arithmetic number, because the mean of its divisors is an integer number (161013008).

Almost surely, 2^1170440649 is an apocalyptic number.

It is an amenable number.

1170440649 is a deficient number, since it is larger than the sum of its proper divisors (761715447).

1170440649 is a wasteful number, since it uses less digits than its factorization.

1170440649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18578436 (or 18578433 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1170440649 is about 34211.7033922604. The cubic root of 1170440649 is about 1053.8605125501.

The spelling of 1170440649 in words is "one billion, one hundred seventy million, four hundred forty thousand, six hundred forty-nine".