1622201 has 8 divisors (see below), whose sum is σ = 1951680. Its totient is φ = 1317168.

The previous prime is 1622189. The next prime is 1622207. The reversal of 1622201 is 1022261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1622201 - 2¹⁰ = 1621177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1622207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5966 + ... + 6231.

It is an arithmetic number, because the mean of its divisors is an integer number (243960).

2^1622201 is an apocalyptic number.

It is an amenable number.

1622201 is a deficient number, since it is larger than the sum of its proper divisors (329479).

1622201 is a wasteful number, since it uses less digits than its factorization.

1622201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12223.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1622201 is about 1273.6565471115. The cubic root of 1622201 is about 117.4991942000.

Adding to 1622201 its reverse (1022261), we get a palindrome (2644462).

It can be divided in two parts, 16 and 22201, that multiplied together give a square (355216 = 596²).

The spelling of 1622201 in words is "one million, six hundred twenty-two thousand, two hundred one".