1422004 has 6 divisors (see below), whose sum is σ = 2488514. Its totient is φ = 711000.

The previous prime is 1421989. The next prime is 1422007. The reversal of 1422004 is 4002241.

It can be written as a sum of positive squares in only one way, i.e., 813604 + 608400 = 902^2 + 780^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422007) 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 as a sum of consecutive naturals, namely, 177747 + ... + 177754.

2^1422004 is an apocalyptic number.

It is an amenable number.

1422004 is a deficient number, since it is larger than the sum of its proper divisors (1066510).

1422004 is a wasteful number, since it uses less digits than its factorization.

1422004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355505 (or 355503 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1422004 is about 1192.4780920419. The cubic root of 1422004 is about 112.4519366705.

Adding to 1422004 its reverse (4002241), we get a palindrome (5424245).

The spelling of 1422004 in words is "one million, four hundred twenty-two thousand, four".