1098843400 has 48 divisors (see below), whose sum is σ = 2665900800. Its totient is φ = 420425280.

The previous prime is 1098843367. The next prime is 1098843401. The reversal of 1098843400 is 43488901.

It is a self number, because there is not a number n which added to its sum of digits gives 1098843400.

It is not an unprimeable number, because it can be changed into a prime (1098843401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114840 + ... + 124039.

It is an arithmetic number, because the mean of its divisors is an integer number (55539600).

Almost surely, 2^1098843400 is an apocalyptic number.

1098843400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1098843400 is an abundant number, since it is smaller than the sum of its proper divisors (1567057400).

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

1098843400 is a wasteful number, since it uses less digits than its factorization.

1098843400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238918 (or 238909 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1098843400 is about 33148.8069166901. The cubic root of 1098843400 is about 1031.9181900375.

The spelling of 1098843400 in words is "one billion, ninety-eight million, eight hundred forty-three thousand, four hundred".