1273028 has 24 divisors (see below), whose sum is σ = 2395512. Its totient is φ = 589824.

The previous prime is 1273021. The next prime is 1273033. The reversal of 1273028 is 8203721.

1273028 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 4 ways, for example, as 174724 + 1098304 = 418^2 + 1048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1272994 and 1273012.

It is not an unprimeable number, because it can be changed into a prime (1273021) 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, 6500 + ... + 6692.

It is an arithmetic number, because the mean of its divisors is an integer number (99813).

2^1273028 is an apocalyptic number.

It is an amenable number.

1273028 is a deficient number, since it is larger than the sum of its proper divisors (1122484).

1273028 is a wasteful number, since it uses less digits than its factorization.

1273028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1273028 is about 1128.2854248815. The cubic root of 1273028 is about 108.3792110749.

Adding to 1273028 its reverse (8203721), we get a palindrome (9476749).

The spelling of 1273028 in words is "one million, two hundred seventy-three thousand, twenty-eight".