4394490 has 48 divisors (see below), whose sum is σ = 10940832. Its totient is φ = 1129536.

The previous prime is 4394473. The next prime is 4394561. The reversal of 4394490 is 944934.

It is a happy 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, 41017 + ... + 41123.

It is an arithmetic number, because the mean of its divisors is an integer number (227934).

Almost surely, 2^4394490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4394490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5470416).

4394490 is an abundant number, since it is smaller than the sum of its proper divisors (6546342).

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

4394490 is a wasteful number, since it uses less digits than its factorization.

4394490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 4394490 is about 2096.3038901839. The cubic root of 4394490 is about 163.7958246359.

It can be divided in two parts, 4394 and 490, that added together give a palindrome (4884).

The spelling of 4394490 in words is "four million, three hundred ninety-four thousand, four hundred ninety".