1089009892 has 6 divisors (see below), whose sum is σ = 1905767318. Its totient is φ = 544504944.

The previous prime is 1089009869. The next prime is 1089009917. The reversal of 1089009892 is 2989009801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 828058176 + 260951716 = 28776^2 + 16154^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136126233 + ... + 136126240.

Almost surely, 2^1089009892 is an apocalyptic number.

It is an amenable number.

1089009892 is a deficient number, since it is larger than the sum of its proper divisors (816757426).

1089009892 is a wasteful number, since it uses less digits than its factorization.

1089009892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272252477 (or 272252475 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 1089009892 is about 33000.1498784475. The cubic root of 1089009892 is about 1028.8307629410.

The spelling of 1089009892 in words is "one billion, eighty-nine million, nine thousand, eight hundred ninety-two".