1066432 has 28 divisors (see below), whose sum is σ = 2230120. Its totient is φ = 504576.

The previous prime is 1066423. The next prime is 1066433. The reversal of 1066432 is 2346601.

It is a super-2 number, since 2×1066432² = 2274554421248, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 0 + 6² + 6⁷ + 4⁹ + 3³ + 2¹⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778 + ... + 1654.

2^1066432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115060).

1066432 is an abundant number, since it is smaller than the sum of its proper divisors (1163688).

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

1066432 is an equidigital number, since it uses as much as digits as its factorization.

1066432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1066432 is about 1032.6819452281. The cubic root of 1066432 is about 102.1670976329.

The spelling of 1066432 in words is "one million, sixty-six thousand, four hundred thirty-two".