1089534872 has 16 divisors (see below), whose sum is σ = 2113322400. Its totient is φ = 525982240.

The previous prime is 1089534799. The next prime is 1089534881. The reversal of 1089534872 is 2784359801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2347904 + ... + 2348367.

It is an arithmetic number, because the mean of its divisors is an integer number (132082650).

Almost surely, 2^1089534872 is an apocalyptic number.

It is an amenable number.

1089534872 is a deficient number, since it is larger than the sum of its proper divisors (1023787528).

1089534872 is a wasteful number, since it uses less digits than its factorization.

1089534872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4696306 (or 4696302 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 1089534872 is about 33008.1031263537. The cubic root of 1089534872 is about 1028.9960595129.

The spelling of 1089534872 in words is "one billion, eighty-nine million, five hundred thirty-four thousand, eight hundred seventy-two".