12098840 has 64 divisors (see below), whose sum is σ = 29937600. Its totient is φ = 4372992.

The previous prime is 12098837. The next prime is 12098857. The reversal of 12098840 is 4889021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12098797 and 12098806.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27341 + ... + 27779.

It is an arithmetic number, because the mean of its divisors is an integer number (467775).

Almost surely, 2^12098840 is an apocalyptic number.

12098840 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 12098840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14968800).

12098840 is an abundant number, since it is smaller than the sum of its proper divisors (17838760).

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

12098840 is a wasteful number, since it uses less digits than its factorization.

12098840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12098840 is about 3478.3386839122. The cubic root of 12098840 is about 229.5697058858.

The spelling of 12098840 in words is "twelve million, ninety-eight thousand, eight hundred forty".