1098399744 has 240 divisors, whose sum is σ = 3523107840. Its totient is φ = 336199680.

The previous prime is 1098399727. The next prime is 1098399769. The reversal of 1098399744 is 4479938901.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5750689 + ... + 5750879.

It is an arithmetic number, because the mean of its divisors is an integer number (14679616).

Almost surely, 2^1098399744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1098399744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761553920).

1098399744 is an abundant number, since it is smaller than the sum of its proper divisors (2424708096).

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

1098399744 is an equidigital number, since it uses as much as digits as its factorization.

1098399744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1098399744 is about 33142.1143562085. The cubic root of 1098399744 is about 1031.7792929861.

The spelling of 1098399744 in words is "one billion, ninety-eight million, three hundred ninety-nine thousand, seven hundred forty-four".