4361728 has 40 divisors (see below), whose sum is σ = 9968112. Its totient is φ = 1867776.

The previous prime is 4361723. The next prime is 4361729. The reversal of 4361728 is 8271634.

It is a super-2 number, since 2×4361728² = 38049342291968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4361728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4361723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976 + ... + 4192.

Almost surely, 2^4361728 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 4361728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4984056).

4361728 is an abundant number, since it is smaller than the sum of its proper divisors (5606384).

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

4361728 is an equidigital number, since it uses as much as digits as its factorization.

4361728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1226 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 4361728 is about 2088.4750417470. The cubic root of 4361728 is about 163.3877628769.

The spelling of 4361728 in words is "four million, three hundred sixty-one thousand, seven hundred twenty-eight".