1288826 has 16 divisors (see below), whose sum is σ = 2410560. Its totient is φ = 502080.

The previous prime is 1288823. The next prime is 1288829. The reversal of 1288826 is 6288821.

It is an interprime number because it is at equal distance from previous prime (1288823) and next prime (1288829).

It is a super-2 number, since 2×1288826² = 3322144916552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1288823) 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, 4031 + ... + 4338.

It is an arithmetic number, because the mean of its divisors is an integer number (150660).

2^1288826 is an apocalyptic number.

1288826 is a deficient number, since it is larger than the sum of its proper divisors (1121734).

1288826 is a wasteful number, since it uses less digits than its factorization.

1288826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8389.

The product of its digits is 12288, while the sum is 35.

The square root of 1288826 is about 1135.2647268369. The cubic root of 1288826 is about 108.8256900300.

The spelling of 1288826 in words is "one million, two hundred eighty-eight thousand, eight hundred twenty-six".