1072489856 has 16 divisors (see below), whose sum is σ = 2136601140. Its totient is φ = 536244864.

The previous prime is 1072489823. The next prime is 1072489871. The reversal of 1072489856 is 6589842701.

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 4189286 + ... + 4189541.

Almost surely, 2^1072489856 is an apocalyptic number.

1072489856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1072489856 is a deficient number, since it is larger than the sum of its proper divisors (1064111284).

1072489856 is an frugal number, since it uses more digits than its factorization.

1072489856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378841 (or 8378829 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 1072489856 is about 32748.8909125179. The cubic root of 1072489856 is about 1023.6018553073.

The spelling of 1072489856 in words is "one billion, seventy-two million, four hundred eighty-nine thousand, eight hundred fifty-six".