212298875440 has 40 divisors (see below), whose sum is σ = 495182065248. Its totient is φ = 84646487040.

The previous prime is 212298875359. The next prime is 212298875443. The reversal of 212298875440 is 44578892212.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (212298875443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4241577 + ... + 4291336.

Almost surely, 2^212298875440 is an apocalyptic number.

212298875440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212298875440 is an abundant number, since it is smaller than the sum of its proper divisors (282883189808).

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

212298875440 is a wasteful number, since it uses less digits than its factorization.

212298875440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8533237 (or 8533231 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 212298875440 in words is "two hundred twelve billion, two hundred ninety-eight million, eight hundred seventy-five thousand, four hundred forty".