212192946 has 112 divisors (see below), whose sum is σ = 577943424. Its totient is φ = 57013632.

The previous prime is 212192909. The next prime is 212192947. The reversal of 212192946 is 649291212.

It is a self number, because there is not a number n which added to its sum of digits gives 212192946.

It is not an unprimeable number, because it can be changed into a prime (212192947) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 172891 + ... + 174113.

Almost surely, 2^212192946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212192946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288971712).

212192946 is an abundant number, since it is smaller than the sum of its proper divisors (365750478).

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

212192946 is a wasteful number, since it uses less digits than its factorization.

212192946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1252 counting only the distinct ones).

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

The square root of 212192946 is about 14566.8440645186. The cubic root of 212192946 is about 596.4540348356.

The spelling of 212192946 in words is "two hundred twelve million, one hundred ninety-two thousand, nine hundred forty-six".