1089219638 has 8 divisors (see below), whose sum is σ = 1759508688. Its totient is φ = 502716744.

The previous prime is 1089219611. The next prime is 1089219673. The reversal of 1089219638 is 8369129801.

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

It is a junction number, because it is equal to n+sod(n) for n = 1089219592 and 1089219601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20946506 + ... + 20946557.

It is an arithmetic number, because the mean of its divisors is an integer number (219938586).

Almost surely, 2^1089219638 is an apocalyptic number.

1089219638 is a deficient number, since it is larger than the sum of its proper divisors (670289050).

1089219638 is a wasteful number, since it uses less digits than its factorization.

1089219638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41893078.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 1089219638 is about 33003.3276807052. The cubic root of 1089219638 is about 1028.8968104844.

The spelling of 1089219638 in words is "one billion, eighty-nine million, two hundred nineteen thousand, six hundred thirty-eight".