212077388 has 48 divisors (see below), whose sum is σ = 399168000. Its totient is φ = 98364288.

The previous prime is 212077387. The next prime is 212077391. The reversal of 212077388 is 883770212.

It is not an unprimeable number, because it can be changed into a prime (212077387) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 482873 + ... + 483311.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2^212077388 is an apocalyptic number.

It is an amenable number.

212077388 is a deficient number, since it is larger than the sum of its proper divisors (187090612).

212077388 is a wasteful number, since it uses less digits than its factorization.

212077388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 212077388 is about 14562.8770509127. The cubic root of 212077388 is about 596.3457410203.

The spelling of 212077388 in words is "two hundred twelve million, seventy-seven thousand, three hundred eighty-eight".