1422404 has 12 divisors (see below), whose sum is σ = 2569728. Its totient is φ = 688200.

The previous prime is 1422367. The next prime is 1422409. The reversal of 1422404 is 4042241.

It is not an unprimeable number, because it can be changed into a prime (1422409) 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, 5612 + ... + 5859.

It is an arithmetic number, because the mean of its divisors is an integer number (214144).

2^1422404 is an apocalyptic number.

It is an amenable number.

1422404 is a deficient number, since it is larger than the sum of its proper divisors (1147324).

1422404 is a wasteful number, since it uses less digits than its factorization.

1422404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11506 (or 11504 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1422404 is about 1192.6457982150. The cubic root of 1422404 is about 112.4624796689.

Adding to 1422404 its reverse (4042241), we get a palindrome (5464645).

The spelling of 1422404 in words is "one million, four hundred twenty-two thousand, four hundred four".