1039448644 has 24 divisors (see below), whose sum is σ = 1971453848. Its totient is φ = 476686080.

The previous prime is 1039448639. The next prime is 1039448651. The reversal of 1039448644 is 4468449301.

It can be written as a sum of positive squares in 4 ways, for example, as 144720900 + 894727744 = 12030^2 + 29912^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1039448644.

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 7 ways as a sum of consecutive naturals, for example, 55497 + ... + 71824.

Almost surely, 2^1039448644 is an apocalyptic number.

It is an amenable number.

1039448644 is a deficient number, since it is larger than the sum of its proper divisors (932005204).

1039448644 is a wasteful number, since it uses less digits than its factorization.

1039448644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127495 (or 127493 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 1039448644 is about 32240.4814480181. The cubic root of 1039448644 is about 1012.9803300185.

The spelling of 1039448644 in words is "one billion, thirty-nine million, four hundred forty-eight thousand, six hundred forty-four".