1084644649 has 16 divisors (see below), whose sum is σ = 1237670784. Its totient is φ = 940896000.

The previous prime is 1084644637. The next prime is 1084644679. The reversal of 1084644649 is 9464464801.

It is not a de Polignac number, because 1084644649 - 2⁹ = 1084644137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1084644599 and 1084644608.

It is not an unprimeable number, because it can be changed into a prime (1084644679) 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 15 ways as a sum of consecutive naturals, for example, 104599 + ... + 114499.

It is an arithmetic number, because the mean of its divisors is an integer number (77354424).

Almost surely, 2^1084644649 is an apocalyptic number.

It is an amenable number.

1084644649 is a deficient number, since it is larger than the sum of its proper divisors (153026135).

1084644649 is a wasteful number, since it uses less digits than its factorization.

1084644649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368.

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 1084644649 is about 32933.9437207268. The cubic root of 1084644649 is about 1027.4542494375.

The spelling of 1084644649 in words is "one billion, eighty-four million, six hundred forty-four thousand, six hundred forty-nine".