218714450 has 12 divisors (see below), whose sum is σ = 406808970. Its totient is φ = 87485760.

The previous prime is 218714443. The next prime is 218714471. The reversal of 218714450 is 54417812.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 181467841 + 37246609 = 13471^2 + 6103^2 .

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 5 ways as a sum of consecutive naturals, for example, 2187095 + ... + 2187194.

Almost surely, 2^218714450 is an apocalyptic number.

218714450 is a deficient number, since it is larger than the sum of its proper divisors (188094520).

218714450 is a wasteful number, since it uses less digits than its factorization.

218714450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374301 (or 4374296 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 218714450 is about 14788.9975995671. The cubic root of 218714450 is about 602.5029240631.

The spelling of 218714450 in words is "two hundred eighteen million, seven hundred fourteen thousand, four hundred fifty".