1225422 has 32 divisors (see below), whose sum is σ = 2972160. Its totient is φ = 371160.

The previous prime is 1225409. The next prime is 1225459. The reversal of 1225422 is 2245221.

1225422 is a `hidden beast` number, since 122 + 542 + 2 = 666.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1225395 and 1225404.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 438 + ... + 1625.

It is an arithmetic number, because the mean of its divisors is an integer number (92880).

2^1225422 is an apocalyptic number.

1225422 is an abundant number, since it is smaller than the sum of its proper divisors (1746738).

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

1225422 is a wasteful number, since it uses less digits than its factorization.

1225422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085 (or 2079 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 1225422 is about 1106.9878048109. The cubic root of 1225422 is about 107.0110333049.

The spelling of 1225422 in words is "one million, two hundred twenty-five thousand, four hundred twenty-two".