212916488 has 8 divisors (see below), whose sum is σ = 399218430. Its totient is φ = 106458240.

The previous prime is 212916481. The next prime is 212916491. The reversal of 212916488 is 884619212.

It can be written as a sum of positive squares in only one way, i.e., 136843204 + 76073284 = 11698^2 + 8722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (212916481) 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 as a sum of consecutive naturals, namely, 13307273 + ... + 13307288.

Almost surely, 2^212916488 is an apocalyptic number.

It is an amenable number.

212916488 is a deficient number, since it is larger than the sum of its proper divisors (186301942).

212916488 is a wasteful number, since it uses less digits than its factorization.

212916488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26614567 (or 26614563 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 212916488 is about 14591.6581648557. The cubic root of 212916488 is about 597.1312014827.

The spelling of 212916488 in words is "two hundred twelve million, nine hundred sixteen thousand, four hundred eighty-eight".