212308992 has 176 divisors, whose sum is σ = 719233920. Its totient is φ = 60604416.

The previous prime is 212308991. The next prime is 212309047. The reversal of 212308992 is 299803212.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212308991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192988 + ... + 194084.

Almost surely, 2^212308992 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 212308992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359616960).

212308992 is an abundant number, since it is smaller than the sum of its proper divisors (506924928).

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

212308992 is a wasteful number, since it uses less digits than its factorization.

212308992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 212308992 is about 14570.8267438742. The cubic root of 212308992 is about 596.5627464150.

The spelling of 212308992 in words is "two hundred twelve million, three hundred eight thousand, nine hundred ninety-two".