1622243 has 6 divisors (see below), whose sum is σ = 1887156. Its totient is φ = 1390452.

The previous prime is 1622233. The next prime is 1622263. The reversal of 1622243 is 3422261.

It is not a de Polignac number, because 1622243 - 2¹⁰ = 1621219 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1622233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16505 + ... + 16602.

It is an arithmetic number, because the mean of its divisors is an integer number (314526).

2^1622243 is an apocalyptic number.

1622243 is a deficient number, since it is larger than the sum of its proper divisors (264913).

1622243 is an equidigital number, since it uses as much as digits as its factorization.

1622243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33121 (or 33114 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 1622243 is about 1273.6730349662. The cubic root of 1622243 is about 117.5002082387.

The spelling of 1622243 in words is "one million, six hundred twenty-two thousand, two hundred forty-three".