1200622 has 4 divisors (see below), whose sum is σ = 1800936. Its totient is φ = 600310.

The previous prime is 1200611. The next prime is 1200637. The reversal of 1200622 is 2260021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2260021 = 211 ⋅10711.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 14.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

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, 300154 + ... + 300157.

It is an arithmetic number, because the mean of its divisors is an integer number (450234).

2^1200622 is an apocalyptic number.

1200622 is a deficient number, since it is larger than the sum of its proper divisors (600314).

1200622 is an equidigital number, since it uses as much as digits as its factorization.

1200622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600313.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1200622 is about 1095.7289810898. The cubic root of 1200622 is about 106.2842141255.

Adding to 1200622 its reverse (2260021), we get a palindrome (3460643).

The spelling of 1200622 in words is "one million, two hundred thousand, six hundred twenty-two".