212889282 has 16 divisors (see below), whose sum is σ = 425945952. Its totient is φ = 70935200.

The previous prime is 212889251. The next prime is 212889289. The reversal of 212889282 is 282988212.

It is not an unprimeable number, because it can be changed into a prime (212889289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14782 + ... + 25382.

It is an arithmetic number, because the mean of its divisors is an integer number (26621622).

Almost surely, 2^212889282 is an apocalyptic number.

212889282 is an abundant number, since it is smaller than the sum of its proper divisors (213056670).

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

212889282 is a wasteful number, since it uses less digits than its factorization.

212889282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13953.

The product of its digits is 73728, while the sum is 42.

The square root of 212889282 is about 14590.7258900988. The cubic root of 212889282 is about 597.1057670294.

The spelling of 212889282 in words is "two hundred twelve million, eight hundred eighty-nine thousand, two hundred eighty-two".