12198816 has 96 divisors (see below), whose sum is σ = 40682880. Its totient is φ = 3483648.

The previous prime is 12198793. The next prime is 12198827. The reversal of 12198816 is 61889121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×12198816² = 297622223603712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5040 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (423780).

Almost surely, 2^12198816 is an apocalyptic number.

12198816 is a gapful number since it is divisible by the number (16) 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 12198816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20341440).

12198816 is an abundant number, since it is smaller than the sum of its proper divisors (28484064).

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

12198816 is a wasteful number, since it uses less digits than its factorization.

12198816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2029 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 12198816 is about 3492.6803460952. The cubic root of 12198816 is about 230.2003043975.

The spelling of 12198816 in words is "twelve million, one hundred ninety-eight thousand, eight hundred sixteen".