1225626 has 16 divisors (see below), whose sum is σ = 2462400. Its totient is φ = 406688.

The previous prime is 1225621. The next prime is 1225643. The reversal of 1225626 is 6265221.

It is a junction number, because it is equal to n+sod(n) for n = 1225596 and 1225605.

It is not an unprimeable number, because it can be changed into a prime (1225621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1870 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2^1225626 is an apocalyptic number.

1225626 is an abundant number, since it is smaller than the sum of its proper divisors (1236774).

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

1225626 is a wasteful number, since it uses less digits than its factorization.

1225626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 1440, while the sum is 24.

The square root of 1225626 is about 1107.0799429129. The cubic root of 1225626 is about 107.0169711340.

The spelling of 1225626 in words is "one million, two hundred twenty-five thousand, six hundred twenty-six".