5401728 has 80 divisors (see below), whose sum is σ = 16106310. Its totient is φ = 1797120.

The previous prime is 5401727. The next prime is 5401763. The reversal of 5401728 is 8271045.

It can be written as a sum of positive squares in only one way, i.e., 4981824 + 419904 = 2232^2 + 648^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5401727) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10108 + ... + 10628.

Almost surely, 2^5401728 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 5401728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8053155).

5401728 is an abundant number, since it is smaller than the sum of its proper divisors (10704582).

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

5401728 is an equidigital number, since it uses as much as digits as its factorization.

5401728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 5401728 is about 2324.1617843859. The cubic root of 5401728 is about 175.4597760105.

It can be divided in two parts, 54017 and 28, that added together give a palindrome (54045).

The spelling of 5401728 in words is "five million, four hundred one thousand, seven hundred twenty-eight".