212856416 has 48 divisors (see below), whose sum is σ = 434931840. Its totient is φ = 102435840.

The previous prime is 212856409. The next prime is 212856481. The reversal of 212856416 is 614658212.

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, 226700 + ... + 227636.

It is an arithmetic number, because the mean of its divisors is an integer number (9061080).

Almost surely, 2^212856416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212856416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217465920).

212856416 is an abundant number, since it is smaller than the sum of its proper divisors (222075424).

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

212856416 is a wasteful number, since it uses less digits than its factorization.

212856416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1199 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 212856416 is about 14589.5995832648. The cubic root of 212856416 is about 597.0750382425.

The spelling of 212856416 in words is "two hundred twelve million, eight hundred fifty-six thousand, four hundred sixteen".