1422603 has 40 divisors (see below), whose sum is σ = 2629088. Its totient is φ = 746496.

The previous prime is 1422601. The next prime is 1422637. The reversal of 1422603 is 3062241.

It is a happy number.

It is not a de Polignac number, because 1422603 - 2¹ = 1422601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1422601) 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 39 ways as a sum of consecutive naturals, for example, 7275 + ... + 7467.

2^1422603 is an apocalyptic number.

1422603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1422603 is a deficient number, since it is larger than the sum of its proper divisors (1206485).

1422603 is a wasteful number, since it uses less digits than its factorization.

1422603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1422603 is about 1192.7292232523. The cubic root of 1422603 is about 112.4677240743.

Adding to 1422603 its reverse (3062241), we get a palindrome (4484844).

It can be divided in two parts, 1422 and 603, that added together give a square (2025 = 45²).

The spelling of 1422603 in words is "one million, four hundred twenty-two thousand, six hundred three".