1089928 has 16 divisors (see below), whose sum is σ = 2335680. Its totient is φ = 467088.

The previous prime is 1089919. The next prime is 1089941. The reversal of 1089928 is 8299801.

It is an Ulam 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, 9676 + ... + 9787.

It is an arithmetic number, because the mean of its divisors is an integer number (145980).

2^1089928 is an apocalyptic number.

It is an amenable number.

1089928 is an abundant number, since it is smaller than the sum of its proper divisors (1245752).

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

1089928 is a wasteful number, since it uses less digits than its factorization.

1089928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19476 (or 19472 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 1089928 is about 1043.9961685753. The cubic root of 1089928 is about 102.9119806055.

The spelling of 1089928 in words is "one million, eighty-nine thousand, nine hundred twenty-eight".