1406699966 has 16 divisors (see below), whose sum is σ = 2476661856. Its totient is φ = 586577376.

The previous prime is 1406699923. The next prime is 1406699981. The reversal of 1406699966 is 6699966041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 1357301 + ... + 1358336.

It is an arithmetic number, because the mean of its divisors is an integer number (154791366).

Almost surely, 2^1406699966 is an apocalyptic number.

1406699966 is a deficient number, since it is larger than the sum of its proper divisors (1069961890).

1406699966 is a wasteful number, since it uses less digits than its factorization.

1406699966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715683.

The product of its (nonzero) digits is 3779136, while the sum is 56.

The square root of 1406699966 is about 37505.9990668160. Note that the first 3 decimals coincide. The cubic root of 1406699966 is about 1120.4706689937.

The spelling of 1406699966 in words is "one billion, four hundred six million, six hundred ninety-nine thousand, nine hundred sixty-six".