1089461028 has 12 divisors (see below), whose sum is σ = 2542075760. Its totient is φ = 363153672.

The previous prime is 1089461027. The next prime is 1089461047. The reversal of 1089461028 is 8201649801.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1089461027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45394198 + ... + 45394221.

Almost surely, 2^1089461028 is an apocalyptic number.

It is an amenable number.

1089461028 is an abundant number, since it is smaller than the sum of its proper divisors (1452614732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089461028 is a wasteful number, since it uses less digits than its factorization.

1089461028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90788426 (or 90788424 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1089461028 is about 33006.9845335802. The cubic root of 1089461028 is about 1028.9728120080.

The spelling of 1089461028 in words is "one billion, eighty-nine million, four hundred sixty-one thousand, twenty-eight".