4398646 has 8 divisors (see below), whose sum is σ = 7540560. Its totient is φ = 1885128.

The previous prime is 4398637. The next prime is 4398677. The reversal of 4398646 is 6468934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4398599 and 4398608.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 157081 + ... + 157108.

It is an arithmetic number, because the mean of its divisors is an integer number (942570).

Almost surely, 2^4398646 is an apocalyptic number.

4398646 is a deficient number, since it is larger than the sum of its proper divisors (3141914).

4398646 is a wasteful number, since it uses less digits than its factorization.

4398646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314198.

The product of its digits is 124416, while the sum is 40.

The square root of 4398646 is about 2097.2949244205. The cubic root of 4398646 is about 163.8474438957.

It can be divided in two parts, 43 and 98646, that added together give a palindrome (98689).

The spelling of 4398646 in words is "four million, three hundred ninety-eight thousand, six hundred forty-six".