5031728 has 40 divisors (see below), whose sum is σ = 11124288. Its totient is φ = 2184192.

The previous prime is 5031727. The next prime is 5031737. The reversal of 5031728 is 8271305.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 5031697 and 5031706.

It is not an unprimeable number, because it can be changed into a prime (5031721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2825 + ... + 4247.

Almost surely, 2^5031728 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 5031728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5562144).

5031728 is an abundant number, since it is smaller than the sum of its proper divisors (6092560).

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

5031728 is a wasteful number, since it uses less digits than its factorization.

5031728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 5031728 is about 2243.1513546794. The cubic root of 5031728 is about 171.3585264102.

The spelling of 5031728 in words is "five million, thirty-one thousand, seven hundred twenty-eight".