1274728 has 64 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 470016.

The previous prime is 1274723. The next prime is 1274737. The reversal of 1274728 is 8274721.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1274728.

It is not an unprimeable number, because it can be changed into a prime (1274723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12325 + ... + 12427.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2^1274728 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 1274728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

1274728 is an abundant number, since it is smaller than the sum of its proper divisors (1870232).

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

1274728 is a wasteful number, since it uses less digits than its factorization.

1274728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 142 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 1274728 is about 1129.0385290148. The cubic root of 1274728 is about 108.4274327705.

It can be divided in two parts, 1274 and 728, that added together give a palindrome (2002).

The spelling of 1274728 in words is "one million, two hundred seventy-four thousand, seven hundred twenty-eight".