1995622 has 4 divisors (see below), whose sum is σ = 2993436. Its totient is φ = 997810.

The previous prime is 1995611. The next prime is 1995629. The reversal of 1995622 is 2265991.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498904 + ... + 498907.

It is an arithmetic number, because the mean of its divisors is an integer number (748359).

2^1995622 is an apocalyptic number.

1995622 is a deficient number, since it is larger than the sum of its proper divisors (997814).

1995622 is an equidigital number, since it uses as much as digits as its factorization.

1995622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997813.

The product of its digits is 9720, while the sum is 34.

The square root of 1995622 is about 1412.6648576361. The cubic root of 1995622 is about 125.9001055886.

The spelling of 1995622 in words is "one million, nine hundred ninety-five thousand, six hundred twenty-two".