1225444 has 12 divisors (see below), whose sum is σ = 2339568. Its totient is φ = 557000.

The previous prime is 1225409. The next prime is 1225459. The reversal of 1225444 is 4445221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13882 + ... + 13969.

It is an arithmetic number, because the mean of its divisors is an integer number (194964).

2^1225444 is an apocalyptic number.

It is an amenable number.

1225444 is a deficient number, since it is larger than the sum of its proper divisors (1114124).

1225444 is a wasteful number, since it uses less digits than its factorization.

1225444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27866 (or 27864 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 1225444 is about 1106.9977416418. The cubic root of 1225444 is about 107.0116736907.

The spelling of 1225444 in words is "one million, two hundred twenty-five thousand, four hundred forty-four".