212411409 has 8 divisors (see below), whose sum is σ = 323674560. Its totient is φ = 121377936.

The previous prime is 212411363. The next prime is 212411449. The reversal of 212411409 is 904114212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212411409 - 2⁷ = 212411281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212411449) 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, 5057394 + ... + 5057435.

It is an arithmetic number, because the mean of its divisors is an integer number (40459320).

Almost surely, 2^212411409 is an apocalyptic number.

It is an amenable number.

212411409 is a deficient number, since it is larger than the sum of its proper divisors (111263151).

212411409 is a wasteful number, since it uses less digits than its factorization.

212411409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10114839.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 212411409 is about 14574.3407741139. The cubic root of 212411409 is about 596.6586574805.

The spelling of 212411409 in words is "two hundred twelve million, four hundred eleven thousand, four hundred nine".