1006446 has 32 divisors (see below), whose sum is σ = 2377728. Its totient is φ = 277920.

The previous prime is 1006441. The next prime is 1006463. The reversal of 1006446 is 6446001.

1006446 = T₂₅₄ + T₂₅₅ + ... + T₂₈₁.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (74304).

2^1006446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1006446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188864).

1006446 is an abundant number, since it is smaller than the sum of its proper divisors (1371282).

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

1006446 is a wasteful number, since it uses less digits than its factorization.

1006446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

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

The square root of 1006446 is about 1003.2178228082. The cubic root of 1006446 is about 100.2144066361.

The spelling of 1006446 in words is "one million, six thousand, four hundred forty-six".