427001218 has 16 divisors (see below), whose sum is σ = 733703040. Its totient is φ = 182575296.

The previous prime is 427001167. The next prime is 427001261. The reversal of 427001218 is 812100724.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 427001192 and 427001201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29158 + ... + 41281.

It is an arithmetic number, because the mean of its divisors is an integer number (45856440).

Almost surely, 2^427001218 is an apocalyptic number.

427001218 is a deficient number, since it is larger than the sum of its proper divisors (306701822).

427001218 is a wasteful number, since it uses less digits than its factorization.

427001218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70881.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 427001218 is about 20664.0077913264. The cubic root of 427001218 is about 753.0255372353.

The spelling of 427001218 in words is "four hundred twenty-seven million, one thousand, two hundred eighteen".