4394556 has 36 divisors (see below), whose sum is σ = 11302200. Its totient is φ = 1439328.

The previous prime is 4394473. The next prime is 4394561. The reversal of 4394556 is 6554934.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4394556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (313950).

Almost surely, 2^4394556 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 4394556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5651100).

4394556 is an abundant number, since it is smaller than the sum of its proper divisors (6907644).

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

4394556 is a wasteful number, since it uses less digits than its factorization.

4394556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138 (or 2133 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 4394556 is about 2096.3196321172. The cubic root of 4394556 is about 163.7966446378.

It can be divided in two parts, 4394 and 556, that added together give a triangular number (4950 = T₉₉).

The spelling of 4394556 in words is "four million, three hundred ninety-four thousand, five hundred fifty-six".