1098944 has 56 divisors (see below), whose sum is σ = 2731008. Its totient is φ = 426240.

The previous prime is 1098847. The next prime is 1098953. The reversal of 1098944 is 4498901.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817 + ... + 5039.

It is an arithmetic number, because the mean of its divisors is an integer number (48768).

2^1098944 is an apocalyptic number.

1098944 is a gapful number since it is divisible by the number (14) 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 1098944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365504).

1098944 is an abundant number, since it is smaller than the sum of its proper divisors (1632064).

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

1098944 is a wasteful number, since it uses less digits than its factorization.

1098944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1098944 is about 1048.3052990422. The cubic root of 1098944 is about 103.1949680058.

The spelling of 1098944 in words is "one million, ninety-eight thousand, nine hundred forty-four".