1066040446 has 8 divisors (see below), whose sum is σ = 1603892664. Its totient is φ = 531409560.

The previous prime is 1066040401. The next prime is 1066040447. The reversal of 1066040446 is 6440406601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1066040446² = 2272884465015757832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066040447) 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, 804505 + ... + 805828.

It is an arithmetic number, because the mean of its divisors is an integer number (200486583).

Almost surely, 2^1066040446 is an apocalyptic number.

1066040446 is a deficient number, since it is larger than the sum of its proper divisors (537852218).

1066040446 is a wasteful number, since it uses less digits than its factorization.

1066040446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610666.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1066040446 is about 32650.2748227331. The cubic root of 1066040446 is about 1021.5459212149.

The spelling of 1066040446 in words is "one billion, sixty-six million, forty thousand, four hundred forty-six".