4218012 has 18 divisors (see below), whose sum is σ = 10662288. Its totient is φ = 1405992.

The previous prime is 4218007. The next prime is 4218031. The reversal of 4218012 is 2108124.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58548 + ... + 58619.

Almost surely, 2^4218012 is an apocalyptic number.

It is an amenable number.

4218012 is an abundant number, since it is smaller than the sum of its proper divisors (6444276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4218012 is a wasteful number, since it uses less digits than its factorization.

4218012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117177 (or 117172 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4218012 is about 2053.7799297880. The cubic root of 4218012 is about 161.5731791419.

The spelling of 4218012 in words is "four million, two hundred eighteen thousand, twelve".