1406206642406 has 8 divisors (see below), whose sum is σ = 2109322033560. Its totient is φ = 703099297888.

The previous prime is 1406206642403. The next prime is 1406206642417. The reversal of 1406206642406 is 6042466026041.

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

It is a super-2 number, since 2×1406206642406² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406206642403) 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, 1553936 + ... + 2286291.

It is an arithmetic number, because the mean of its divisors is an integer number (263665254195).

Almost surely, 2^{1406206642406} is an apocalyptic number.

1406206642406 is a deficient number, since it is larger than the sum of its proper divisors (703115391154).

1406206642406 is a wasteful number, since it uses less digits than its factorization.

1406206642406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023318.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 1406206642406 in words is "one trillion, four hundred six billion, two hundred six million, six hundred forty-two thousand, four hundred six".