1016579644 has 12 divisors (see below), whose sum is σ = 1812581064. Its totient is φ = 498699344.

The previous prime is 1016579639. The next prime is 1016579653. The reversal of 1016579644 is 4469756101.

It is a self number, because there is not a number n which added to its sum of digits gives 1016579644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397382 + ... + 2397805.

It is an arithmetic number, because the mean of its divisors is an integer number (151048422).

Almost surely, 2^1016579644 is an apocalyptic number.

It is an amenable number.

1016579644 is a deficient number, since it is larger than the sum of its proper divisors (796001420).

1016579644 is a wasteful number, since it uses less digits than its factorization.

1016579644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795244 (or 4795242 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1016579644 is about 31883.8461293489. The cubic root of 1016579644 is about 1005.4962835215.

The spelling of 1016579644 in words is "one billion, sixteen million, five hundred seventy-nine thousand, six hundred forty-four".