1098741994 has 96 divisors (see below), whose sum is σ = 2163957120. Its totient is φ = 414554112.

The previous prime is 1098741967. The next prime is 1098742009. The reversal of 1098741994 is 4991478901.

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 47 ways as a sum of consecutive naturals, for example, 3260194 + ... + 3260530.

It is an arithmetic number, because the mean of its divisors is an integer number (22541220).

Almost surely, 2^1098741994 is an apocalyptic number.

1098741994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1098741994 is a deficient number, since it is larger than the sum of its proper divisors (1065215126).

1098741994 is a wasteful number, since it uses less digits than its factorization.

1098741994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 1098741994 is about 33147.2773240880. The cubic root of 1098741994 is about 1031.8864457765.

The spelling of 1098741994 in words is "one billion, ninety-eight million, seven hundred forty-one thousand, nine hundred ninety-four".