212440319 has 8 divisors (see below), whose sum is σ = 261465120. Its totient is φ = 168084576.

The previous prime is 212440301. The next prime is 212440343. The reversal of 212440319 is 913044212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212440319 is a prime.

It is a super-2 number, since 2×212440319² = 90261778273643522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212440219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167164 + ... + 1167345.

It is an arithmetic number, because the mean of its divisors is an integer number (32683140).

Almost surely, 2^212440319 is an apocalyptic number.

212440319 is a deficient number, since it is larger than the sum of its proper divisors (49024801).

212440319 is a wasteful number, since it uses less digits than its factorization.

212440319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334529.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 212440319 is about 14575.3325519523. The cubic root of 212440319 is about 596.6857254228.

The spelling of 212440319 in words is "two hundred twelve million, four hundred forty thousand, three hundred nineteen".