4646218 has 16 divisors (see below), whose sum is σ = 7259904. Its totient is φ = 2227680.

The previous prime is 4646209. The next prime is 4646233. The reversal of 4646218 is 8126464.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 4646218.

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 7 ways as a sum of consecutive naturals, for example, 8221 + ... + 8767.

It is an arithmetic number, because the mean of its divisors is an integer number (453744).

Almost surely, 2^4646218 is an apocalyptic number.

4646218 is a deficient number, since it is larger than the sum of its proper divisors (2613686).

4646218 is a wasteful number, since it uses less digits than its factorization.

4646218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717.

The product of its digits is 9216, while the sum is 31.

The square root of 4646218 is about 2155.5087566512. The cubic root of 4646218 is about 166.8654898329.

4646218 divided by its sum of digits (31) gives a triangular number (149878 = T₅₄₇).

It can be divided in two parts, 46 and 46218, that added together give a palindrome (46264).

The spelling of 4646218 in words is "four million, six hundred forty-six thousand, two hundred eighteen".