212076340 has 24 divisors (see below), whose sum is σ = 508983552. Its totient is φ = 72711840.

The previous prime is 212076323. The next prime is 212076383. The reversal of 212076340 is 43670212.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 757276 + ... + 757555.

It is an arithmetic number, because the mean of its divisors is an integer number (21207648).

Almost surely, 2^212076340 is an apocalyptic number.

212076340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212076340 is an abundant number, since it is smaller than the sum of its proper divisors (296907212).

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

212076340 is a wasteful number, since it uses less digits than its factorization.

212076340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514847 (or 1514845 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 212076340 is about 14562.8410689673. The cubic root of 212076340 is about 596.3447587195.

The spelling of 212076340 in words is "two hundred twelve million, seventy-six thousand, three hundred forty".