1063641406 has 8 divisors (see below), whose sum is σ = 1595942784. Its totient is φ = 531660480.

The previous prime is 1063641389. The next prime is 1063641407. The reversal of 1063641406 is 6041463601.

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

It is a super-2 number, since 2×1063641406² = 2262666081115313672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1063641407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71635 + ... + 85198.

It is an arithmetic number, because the mean of its divisors is an integer number (199492848).

Almost surely, 2^1063641406 is an apocalyptic number.

1063641406 is a deficient number, since it is larger than the sum of its proper divisors (532301378).

1063641406 is a wasteful number, since it uses less digits than its factorization.

1063641406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160226.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1063641406 is about 32613.5156951838. The cubic root of 1063641406 is about 1020.7790428007.

The spelling of 1063641406 in words is "one billion, sixty-three million, six hundred forty-one thousand, four hundred six".