1706400406 has 16 divisors (see below), whose sum is σ = 2671932384. Its totient is φ = 815785344.

The previous prime is 1706400401. The next prime is 1706400413. The reversal of 1706400406 is 6040046071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1706400401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146800 + ... + 157996.

It is an arithmetic number, because the mean of its divisors is an integer number (166995774).

Almost surely, 2^1706400406 is an apocalyptic number.

1706400406 is a deficient number, since it is larger than the sum of its proper divisors (965531978).

1706400406 is a wasteful number, since it uses less digits than its factorization.

1706400406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14535.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1706400406 is about 41308.5996615717. The cubic root of 1706400406 is about 1194.9791155469.

Adding to 1706400406 its reverse (6040046071), we get a palindrome (7746446477).

The spelling of 1706400406 in words is "one billion, seven hundred six million, four hundred thousand, four hundred six".