212451882 has 16 divisors (see below), whose sum is σ = 447267360. Its totient is φ = 67090032.

The previous prime is 212451881. The next prime is 212451913. The reversal of 212451882 is 288154212.

It is not an unprimeable number, because it can be changed into a prime (212451881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931693 + ... + 931920.

It is an arithmetic number, because the mean of its divisors is an integer number (27954210).

Almost surely, 2^212451882 is an apocalyptic number.

212451882 is an abundant number, since it is smaller than the sum of its proper divisors (234815478).

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

212451882 is a wasteful number, since it uses less digits than its factorization.

212451882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863637.

The product of its digits is 10240, while the sum is 33.

The square root of 212451882 is about 14575.7292098886. The cubic root of 212451882 is about 596.6965509759.

The spelling of 212451882 in words is "two hundred twelve million, four hundred fifty-one thousand, eight hundred eighty-two".