4218536 has 32 divisors (see below), whose sum is σ = 9175680. Its totient is φ = 1780800.

The previous prime is 4218517. The next prime is 4218541. The reversal of 4218536 is 6358124.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4218499 and 4218508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3446 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (286740).

Almost surely, 2^4218536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4218536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4587840).

4218536 is an abundant number, since it is smaller than the sum of its proper divisors (4957144).

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

4218536 is a wasteful number, since it uses less digits than its factorization.

4218536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1141 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 4218536 is about 2053.9074954827. The cubic root of 4218536 is about 161.5798695638.

The spelling of 4218536 in words is "four million, two hundred eighteen thousand, five hundred thirty-six".