1098094644 has 72 divisors (see below), whose sum is σ = 2884784448. Its totient is φ = 365238720.

The previous prime is 1098094637. The next prime is 1098094663. The reversal of 1098094644 is 4464908901.

1098094644 is a `hidden beast` number, since 109 + 80 + 9 + 464 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1098094644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598809 + ... + 600639.

Almost surely, 2^1098094644 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 1098094644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442392224).

1098094644 is an abundant number, since it is smaller than the sum of its proper divisors (1786689804).

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

1098094644 is a wasteful number, since it uses less digits than its factorization.

1098094644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1098094644 is about 33137.5111316466. The cubic root of 1098094644 is about 1031.6837524766.

The spelling of 1098094644 in words is "one billion, ninety-eight million, ninety-four thousand, six hundred forty-four".