1226688 has 28 divisors (see below), whose sum is σ = 3246120. Its totient is φ = 408832.

The previous prime is 1226683. The next prime is 1226699. The reversal of 1226688 is 8866221.

1226688 is nontrivially palindromic in base 7.

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

It is an Ulam number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003 + ... + 3386.

2^1226688 is an apocalyptic number.

It is an amenable number.

1226688 is an abundant number, since it is smaller than the sum of its proper divisors (2019432).

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

1226688 is an equidigital number, since it uses as much as digits as its factorization.

1226688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404 (or 6394 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 1226688 is about 1107.5594792155. The cubic root of 1226688 is about 107.0478721356.

The spelling of 1226688 in words is "one million, two hundred twenty-six thousand, six hundred eighty-eight".