1005622 has 12 divisors (see below), whose sum is σ = 1546020. Its totient is φ = 490568.

The previous prime is 1005619. The next prime is 1005637. The reversal of 1005622 is 2265001.

It is a happy number.

It is a super-2 number, since 2×1005622² = 2022551213768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1005596 and 1005605.

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 in 5 ways as a sum of consecutive naturals, for example, 5529 + ... + 5707.

It is an arithmetic number, because the mean of its divisors is an integer number (128835).

2^1005622 is an apocalyptic number.

1005622 is a deficient number, since it is larger than the sum of its proper divisors (540398).

1005622 is an equidigital number, since it uses as much as digits as its factorization.

1005622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1005622 is about 1002.8070602065. The cubic root of 1005622 is about 100.1870499052.

The spelling of 1005622 in words is "one million, five thousand, six hundred twenty-two".