3940923940 has 12 divisors (see below), whose sum is σ = 8275940316. Its totient is φ = 1576369568.

The previous prime is 3940923881. The next prime is 3940923979. The reversal of 3940923940 is 493290493.

It can be written as a sum of positive squares in 2 ways, for example, as 1610737956 + 2330185984 = 40134^2 + 48272^2 .

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 3 ways as a sum of consecutive naturals, for example, 98523079 + ... + 98523118.

It is an arithmetic number, because the mean of its divisors is an integer number (689661693).

Almost surely, 2^3940923940 is an apocalyptic number.

It is an amenable number.

3940923940 is an abundant number, since it is smaller than the sum of its proper divisors (4335016376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3940923940 is a wasteful number, since it uses less digits than its factorization.

3940923940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197046206 (or 197046204 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 3940923940 is about 62776.7786685491. The cubic root of 3940923940 is about 1579.5474776281.

The spelling of 3940923940 in words is "three billion, nine hundred forty million, nine hundred twenty-three thousand, nine hundred forty".