2198004012 has 72 divisors (see below), whose sum is σ = 5840963856. Its totient is φ = 722608128.

The previous prime is 2198003987. The next prime is 2198004031. The reversal of 2198004012 is 2104008912.

It is a super-2 number, since 2×2198004012² = 9662443273536192288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 23 ways as a sum of consecutive naturals, for example, 55468 + ... + 86444.

It is an arithmetic number, because the mean of its divisors is an integer number (81124498).

Almost surely, 2^2198004012 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 2198004012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2920481928).

2198004012 is an abundant number, since it is smaller than the sum of its proper divisors (3642959844).

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

2198004012 is a wasteful number, since it uses less digits than its factorization.

2198004012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31069 (or 31055 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2198004012 is about 46882.8754664216. The cubic root of 2198004012 is about 1300.1979998219.

The spelling of 2198004012 in words is "two billion, one hundred ninety-eight million, four thousand, twelve".