212538368 has 88 divisors (see below), whose sum is σ = 491280000. Its totient is φ = 90021888.

The previous prime is 212538343. The next prime is 212538407. The reversal of 212538368 is 863835212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067933 + ... + 1068131.

Almost surely, 2^212538368 is an apocalyptic number.

212538368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212538368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245640000).

212538368 is an abundant number, since it is smaller than the sum of its proper divisors (278741632).

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

212538368 is a wasteful number, since it uses less digits than its factorization.

212538368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 357 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 212538368 is about 14578.6956892584. The cubic root of 212538368 is about 596.7775087538. Note that the first 3 decimals are identical.

The spelling of 212538368 in words is "two hundred twelve million, five hundred thirty-eight thousand, three hundred sixty-eight".