1422636 has 24 divisors (see below), whose sum is σ = 3354624. Its totient is φ = 469200.

The previous prime is 1422601. The next prime is 1422637. The reversal of 1422636 is 6362241.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1422637) 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 7 ways as a sum of consecutive naturals, for example, 661 + ... + 1811.

It is an arithmetic number, because the mean of its divisors is an integer number (139776).

2^1422636 is an apocalyptic number.

It is an amenable number.

1422636 is an abundant number, since it is smaller than the sum of its proper divisors (1931988).

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

1422636 is a wasteful number, since it uses less digits than its factorization.

1422636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1259 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1422636 is about 1192.7430569909. The cubic root of 1422636 is about 112.4685937023.

Adding to 1422636 its reverse (6362241), we get a palindrome (7784877).

The spelling of 1422636 in words is "one million, four hundred twenty-two thousand, six hundred thirty-six".