212758382 has 8 divisors (see below), whose sum is σ = 322982856. Its totient is φ = 105097432.

The previous prime is 212758379. The next prime is 212758411. The reversal of 212758382 is 283857212.

212758382 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×212758382² = 90532258222515848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640673 + ... + 641004.

It is an arithmetic number, because the mean of its divisors is an integer number (40372857).

Almost surely, 2^212758382 is an apocalyptic number.

212758382 is a deficient number, since it is larger than the sum of its proper divisors (110224474).

212758382 is a wasteful number, since it uses less digits than its factorization.

212758382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281762.

The product of its digits is 53760, while the sum is 38.

The square root of 212758382 is about 14586.2394742442. The cubic root of 212758382 is about 596.9833604128.

The spelling of 212758382 in words is "two hundred twelve million, seven hundred fifty-eight thousand, three hundred eighty-two".