1089940798 has 8 divisors (see below), whose sum is σ = 1637934840. Its totient is φ = 543962520.

The previous prime is 1089940769. The next prime is 1089940837. The reversal of 1089940798 is 8970499801.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 502588 + ... + 504751.

It is an arithmetic number, because the mean of its divisors is an integer number (204741855).

Almost surely, 2^1089940798 is an apocalyptic number.

1089940798 is a deficient number, since it is larger than the sum of its proper divisors (547994042).

1089940798 is a wasteful number, since it uses less digits than its factorization.

1089940798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007882.

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 1089940798 is about 33014.2514378261. The cubic root of 1089940798 is about 1029.1238340347.

The spelling of 1089940798 in words is "one billion, eighty-nine million, nine hundred forty thousand, seven hundred ninety-eight".