2778032146 has 16 divisors (see below), whose sum is σ = 4202172000. Its totient is φ = 1377347328.

The previous prime is 2778032093. The next prime is 2778032183. The reversal of 2778032146 is 6412308772.

It is a junction number, because it is equal to n+sod(n) for n = 2778032099 and 2778032108.

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, 136885 + ... + 155863.

It is an arithmetic number, because the mean of its divisors is an integer number (262635750).

Almost surely, 2^2778032146 is an apocalyptic number.

2778032146 is a deficient number, since it is larger than the sum of its proper divisors (1424139854).

2778032146 is a wasteful number, since it uses less digits than its factorization.

2778032146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 2778032146 is about 52707.0407630707. The cubic root of 2778032146 is about 1405.7640160201.

The spelling of 2778032146 in words is "two billion, seven hundred seventy-eight million, thirty-two thousand, one hundred forty-six".