212883620 has 12 divisors (see below), whose sum is σ = 447055644. Its totient is φ = 85153440.

The previous prime is 212883613. The next prime is 212883689. The reversal of 212883620 is 26388212.

It can be written as a sum of positive squares in 2 ways, for example, as 36312676 + 176570944 = 6026^2 + 13288^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5322071 + ... + 5322110.

It is an arithmetic number, because the mean of its divisors is an integer number (37254637).

Almost surely, 2^212883620 is an apocalyptic number.

212883620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212883620 is an abundant number, since it is smaller than the sum of its proper divisors (234172024).

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

212883620 is a wasteful number, since it uses less digits than its factorization.

212883620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10644190 (or 10644188 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 212883620 is about 14590.5318614504. The cubic root of 212883620 is about 597.1004734439.

The spelling of 212883620 in words is "two hundred twelve million, eight hundred eighty-three thousand, six hundred twenty".