1099648958 has 4 divisors (see below), whose sum is σ = 1649473440. Its totient is φ = 549824478.

The previous prime is 1099648937. The next prime is 1099648967. The reversal of 1099648958 is 8598469901.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 1099648897 and 1099648906.

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 as a sum of consecutive naturals, namely, 274912238 + ... + 274912241.

It is an arithmetic number, because the mean of its divisors is an integer number (412368360).

Almost surely, 2^1099648958 is an apocalyptic number.

1099648958 is a deficient number, since it is larger than the sum of its proper divisors (549824482).

1099648958 is an equidigital number, since it uses as much as digits as its factorization.

1099648958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549824481.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The square root of 1099648958 is about 33160.9553239951. The cubic root of 1099648958 is about 1032.1702935681.

The spelling of 1099648958 in words is "one billion, ninety-nine million, six hundred forty-eight thousand, nine hundred fifty-eight".