212980068 has 54 divisors (see below), whose sum is σ = 626268006. Its totient is φ = 60850944.

The previous prime is 212980067. The next prime is 212980073. The reversal of 212980068 is 860089212.

It can be written as a sum of positive squares in only one way, i.e., 208744704 + 4235364 = 14448^2 + 2058^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212980067) 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 17 ways as a sum of consecutive naturals, for example, 58605 + ... + 62132.

Almost surely, 2^212980068 is an apocalyptic number.

212980068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212980068 is an abundant number, since it is smaller than the sum of its proper divisors (413287938).

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

212980068 is a wasteful number, since it uses less digits than its factorization.

212980068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120761 (or 120749 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 212980068 is about 14593.8366442824. The cubic root of 212980068 is about 597.1906329586.

The spelling of 212980068 in words is "two hundred twelve million, nine hundred eighty thousand, sixty-eight".