218427016 has 16 divisors (see below), whose sum is σ = 433642140. Its totient is φ = 102789120.

The previous prime is 218427007. The next prime is 218427017. The reversal of 218427016 is 610724812.

It can be written as a sum of positive squares in 2 ways, for example, as 206496900 + 11930116 = 14370^2 + 3454^2 .

It is a super-2 number, since 2×218427016² = 95420722637328512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (218427017) 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, 802905 + ... + 803176.

Almost surely, 2^218427016 is an apocalyptic number.

It is an amenable number.

218427016 is a deficient number, since it is larger than the sum of its proper divisors (215215124).

218427016 is a wasteful number, since it uses less digits than its factorization.

218427016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606104 (or 1606100 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 218427016 is about 14779.2765722819. The cubic root of 218427016 is about 602.2388723965.

The spelling of 218427016 in words is "two hundred eighteen million, four hundred twenty-seven thousand, sixteen".