1098118738 has 16 divisors (see below), whose sum is σ = 1680608160. Its totient is φ = 537977376.

The previous prime is 1098118729. The next prime is 1098118751. The reversal of 1098118738 is 8378118901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21070 + ... + 51382.

It is an arithmetic number, because the mean of its divisors is an integer number (105038010).

Almost surely, 2^1098118738 is an apocalyptic number.

1098118738 is a deficient number, since it is larger than the sum of its proper divisors (582489422).

1098118738 is a wasteful number, since it uses less digits than its factorization.

1098118738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30681.

The product of its (nonzero) digits is 96768, while the sum is 46.

The square root of 1098118738 is about 33137.8746753620. The cubic root of 1098118738 is about 1031.6912980334.

The spelling of 1098118738 in words is "one billion, ninety-eight million, one hundred eighteen thousand, seven hundred thirty-eight".