2176393906 has 16 divisors (see below), whose sum is σ = 3419501184. Its totient is φ = 1036920544.

The previous prime is 2176393859. The next prime is 2176393949. The reversal of 2176393906 is 6093936712.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77851 + ... + 102046.

It is an arithmetic number, because the mean of its divisors is an integer number (213718824).

Almost surely, 2^2176393906 is an apocalyptic number.

2176393906 is a deficient number, since it is larger than the sum of its proper divisors (1243107278).

2176393906 is a wasteful number, since it uses less digits than its factorization.

2176393906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180185.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 2176393906 is about 46651.8371128083. The cubic root of 2176393906 is about 1295.9229083500.

The spelling of 2176393906 in words is "two billion, one hundred seventy-six million, three hundred ninety-three thousand, nine hundred six".