1282628 has 6 divisors (see below), whose sum is σ = 2244606. Its totient is φ = 641312.

The previous prime is 1282627. The next prime is 1282637. The reversal of 1282628 is 8262821.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 238144 = 1022^2 + 488^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1282628.

It is not an unprimeable number, because it can be changed into a prime (1282627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160325 + ... + 160332.

It is an arithmetic number, because the mean of its divisors is an integer number (374101).

2^1282628 is an apocalyptic number.

It is an amenable number.

1282628 is a deficient number, since it is larger than the sum of its proper divisors (961978).

1282628 is a wasteful number, since it uses less digits than its factorization.

1282628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320661 (or 320659 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 1282628 is about 1132.5316772612. The cubic root of 1282628 is about 108.6509610500.

It can be divided in two parts, 12826 and 28, that multiplied together give a triangular number (359128 = T₈₄₇).

The spelling of 1282628 in words is "one million, two hundred eighty-two thousand, six hundred twenty-eight".