1098192840 has 32 divisors (see below), whose sum is σ = 3294578880. Its totient is φ = 292851392.

The previous prime is 1098192833. The next prime is 1098192841. The reversal of 1098192840 is 482918901.

It is a junction number, because it is equal to n+sod(n) for n = 1098192792 and 1098192801.

It is not an unprimeable number, because it can be changed into a prime (1098192841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4575684 + ... + 4575923.

It is an arithmetic number, because the mean of its divisors is an integer number (102955590).

Almost surely, 2^1098192840 is an apocalyptic number.

1098192840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1098192840 is an abundant number, since it is smaller than the sum of its proper divisors (2196386040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1098192840 is a wasteful number, since it uses less digits than its factorization.

1098192840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151621 (or 9151617 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 1098192840 is about 33138.9927426891. The cubic root of 1098192840 is about 1031.7145039844.

The spelling of 1098192840 in words is "one billion, ninety-eight million, one hundred ninety-two thousand, eight hundred forty".