1098969538 has 8 divisors (see below), whose sum is σ = 1735215120. Its totient is φ = 520564500.

The previous prime is 1098969517. The next prime is 1098969563. The reversal of 1098969538 is 8359698901.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14460088 + ... + 14460163.

It is an arithmetic number, because the mean of its divisors is an integer number (216901890).

Almost surely, 2^1098969538 is an apocalyptic number.

1098969538 is a deficient number, since it is larger than the sum of its proper divisors (636245582).

1098969538 is a wasteful number, since it uses less digits than its factorization.

1098969538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28920272.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The square root of 1098969538 is about 33150.7094645047. The cubic root of 1098969538 is about 1031.9576737092.

The spelling of 1098969538 in words is "one billion, ninety-eight million, nine hundred sixty-nine thousand, five hundred thirty-eight".