1066422 has 16 divisors (see below), whose sum is σ = 2437632. Its totient is φ = 304680.

The previous prime is 1066411. The next prime is 1066423. The reversal of 1066422 is 2246601.

It is a happy number.

It is a super-2 number, since 2×1066422² = 2274511764168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066423) 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, 12654 + ... + 12737.

It is an arithmetic number, because the mean of its divisors is an integer number (152352).

2^1066422 is an apocalyptic number.

1066422 is an abundant number, since it is smaller than the sum of its proper divisors (1371210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066422 is a wasteful number, since it uses less digits than its factorization.

1066422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25403.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1066422 is about 1032.6771034549. The cubic root of 1066422 is about 102.1667782895.

The spelling of 1066422 in words is "one million, sixty-six thousand, four hundred twenty-two".