2197447912 has 16 divisors (see below), whose sum is σ = 4494780000. Its totient is φ = 998839920.

The previous prime is 2197447909. The next prime is 2197447913.

It is a happy number.

2197447912 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2197447913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12485412 + ... + 12485587.

It is an arithmetic number, because the mean of its divisors is an integer number (280923750).

Almost surely, 2^2197447912 is an apocalyptic number.

2197447912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2197447912 is an abundant number, since it is smaller than the sum of its proper divisors (2297332088).

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

2197447912 is a wasteful number, since it uses less digits than its factorization.

2197447912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24971016 (or 24971012 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 2197447912 is about 46876.9443543412. The cubic root of 2197447912 is about 1300.0883395590.

The spelling of 2197447912 in words is "two billion, one hundred ninety-seven million, four hundred forty-seven thousand, nine hundred twelve".