1098074880 has 720 divisors, whose sum is σ = 4807978560. Its totient is φ = 233570304.

The previous prime is 1098074843. The next prime is 1098074899. The reversal of 1098074880 is 884708901.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 79 ways as a sum of consecutive naturals, for example, 12337876 + ... + 12337964.

It is an arithmetic number, because the mean of its divisors is an integer number (6677748).

Almost surely, 2^1098074880 is an apocalyptic number.

1098074880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1098074880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403989280).

1098074880 is an abundant number, since it is smaller than the sum of its proper divisors (3709903680).

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

1098074880 is an equidigital number, since it uses as much as digits as its factorization.

1098074880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 1098074880 is about 33137.2129184094. The cubic root of 1098074880 is about 1031.6775628705.

The spelling of 1098074880 in words is "one billion, ninety-eight million, seventy-four thousand, eight hundred eighty".