1996188406 has 16 divisors (see below), whose sum is σ = 3076426800. Its totient is φ = 970734240.

The previous prime is 1996188379. The next prime is 1996188409. The reversal of 1996188406 is 6048816991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996188409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300036 + ... + 306616.

It is an arithmetic number, because the mean of its divisors is an integer number (192276675).

Almost surely, 2^1996188406 is an apocalyptic number.

1996188406 is a deficient number, since it is larger than the sum of its proper divisors (1080238394).

1996188406 is a wasteful number, since it uses less digits than its factorization.

1996188406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 1996188406 is about 44678.7243103471. The cubic root of 1996188406 is about 1259.1201563133.

The spelling of 1996188406 in words is "one billion, nine hundred ninety-six million, one hundred eighty-eight thousand, four hundred six".