218077252 has 12 divisors (see below), whose sum is σ = 390510736. Its totient is φ = 106502760.

The previous prime is 218077247. The next prime is 218077259. The reversal of 218077252 is 252770812.

It is not an unprimeable number, because it can be changed into a prime (218077259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633774 + ... + 634117.

Almost surely, 2^218077252 is an apocalyptic number.

It is an amenable number.

218077252 is a deficient number, since it is larger than the sum of its proper divisors (172433484).

218077252 is a wasteful number, since it uses less digits than its factorization.

218077252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267938 (or 1267936 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 218077252 is about 14767.4389113346. The cubic root of 218077252 is about 601.9172485527.

The spelling of 218077252 in words is "two hundred eighteen million, seventy-seven thousand, two hundred fifty-two".