2040949678 has 16 divisors (see below), whose sum is σ = 3142670256. Its totient is φ = 993545280.

The previous prime is 2040949663. The next prime is 2040949679. The reversal of 2040949678 is 8769490402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040949679) 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 7 ways as a sum of consecutive naturals, for example, 10993 + ... + 64828.

It is an arithmetic number, because the mean of its divisors is an integer number (196416891).

Almost surely, 2^2040949678 is an apocalyptic number.

2040949678 is a deficient number, since it is larger than the sum of its proper divisors (1101720578).

2040949678 is a wasteful number, since it uses less digits than its factorization.

2040949678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76179.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 2040949678 is about 45176.8710514573. The cubic root of 2040949678 is about 1268.4619150394.

The spelling of 2040949678 in words is "two billion, forty million, nine hundred forty-nine thousand, six hundred seventy-eight".