6238728 has 64 divisors (see below), whose sum is σ = 18360000. Its totient is φ = 1956096.

The previous prime is 6238723. The next prime is 6238751. The reversal of 6238728 is 8278326.

It is a happy number.

6238728 is a `hidden beast` number, since 623 + 8 + 7 + 28 = 666.

6238728 is nontrivially palindromic in base 5.

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

It is a junction number, because it is equal to n+sod(n) for n = 6238692 and 6238701.

It is not an unprimeable number, because it can be changed into a prime (6238721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2823 + ... + 4521.

It is an arithmetic number, because the mean of its divisors is an integer number (286875).

Almost surely, 2^6238728 is an apocalyptic number.

6238728 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6238728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9180000).

6238728 is an abundant number, since it is smaller than the sum of its proper divisors (12121272).

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

6238728 is a wasteful number, since it uses less digits than its factorization.

6238728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1721 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 6238728 is about 2497.7445826185. The cubic root of 6238728 is about 184.0907712183.

The spelling of 6238728 in words is "six million, two hundred thirty-eight thousand, seven hundred twenty-eight".