212338649 has 8 divisors (see below), whose sum is σ = 217008000. Its totient is φ = 207718992.

The previous prime is 212338627. The next prime is 212338657. The reversal of 212338649 is 946833212.

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

It is a cyclic number.

It is not a de Polignac number, because 212338649 - 2⁸ = 212338393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212338849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3719 + ... + 20940.

It is an arithmetic number, because the mean of its divisors is an integer number (27126000).

Almost surely, 2^212338649 is an apocalyptic number.

It is an amenable number.

212338649 is a deficient number, since it is larger than the sum of its proper divisors (4669351).

212338649 is a wasteful number, since it uses less digits than its factorization.

212338649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24847.

The product of its digits is 62208, while the sum is 38.

The square root of 212338649 is about 14571.8443925263. The cubic root of 212338649 is about 596.5905226567.

The spelling of 212338649 in words is "two hundred twelve million, three hundred thirty-eight thousand, six hundred forty-nine".