4391156 has 48 divisors (see below), whose sum is σ = 9797760. Its totient is φ = 1672320.

The previous prime is 4391131. The next prime is 4391161. The reversal of 4391156 is 6511934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16190 + ... + 16458.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

Almost surely, 2^4391156 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 4391156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4898880).

4391156 is an abundant number, since it is smaller than the sum of its proper divisors (5406604).

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

4391156 is a wasteful number, since it uses less digits than its factorization.

4391156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 342 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 4391156 is about 2095.5085301664. The cubic root of 4391156 is about 163.7543914290.

The spelling of 4391156 in words is "four million, three hundred ninety-one thousand, one hundred fifty-six".