4398660 has 72 divisors (see below), whose sum is σ = 15253056. Its totient is φ = 1005120.

The previous prime is 4398637. The next prime is 4398677. The reversal of 4398660 is 668934.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 486 + ... + 3005.

It is an arithmetic number, because the mean of its divisors is an integer number (211848).

Almost surely, 2^4398660 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 4398660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7626528).

4398660 is an abundant number, since it is smaller than the sum of its proper divisors (10854396).

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

4398660 is a wasteful number, since it uses less digits than its factorization.

4398660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 4398660 is about 2097.2982620505. The cubic root of 4398660 is about 163.8476177266.

The spelling of 4398660 in words is "four million, three hundred ninety-eight thousand, six hundred sixty".