1307028 has 48 divisors (see below), whose sum is σ = 3326400. Its totient is φ = 397824.

The previous prime is 1306997. The next prime is 1307051. The reversal of 1307028 is 8207031.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1306995 and 1307013.

It is a congruent number.

It is an unprimeable number.

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, 8698 + ... + 8846.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2^1307028 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 1307028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663200).

1307028 is an abundant number, since it is smaller than the sum of its proper divisors (2019372).

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

1307028 is a wasteful number, since it uses less digits than its factorization.

1307028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1307028 is about 1143.2532527835. The cubic root of 1307028 is about 109.3356095435.

The spelling of 1307028 in words is "one million, three hundred seven thousand, twenty-eight".