3940425140 has 24 divisors (see below), whose sum is σ = 8276137632. Its totient is φ = 1575932960.

The previous prime is 3940425103. The next prime is 3940425157. The reversal of 3940425140 is 415240493.

It is a junction number, because it is equal to n+sod(n) for n = 3940425097 and 3940425106.

It is a congruent number.

It is an unprimeable number.

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, 191555 + ... + 211125.

It is an arithmetic number, because the mean of its divisors is an integer number (344839068).

Almost surely, 2^3940425140 is an apocalyptic number.

It is an amenable number.

3940425140 is an abundant number, since it is smaller than the sum of its proper divisors (4335712492).

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

3940425140 is a wasteful number, since it uses less digits than its factorization.

3940425140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29647 (or 29645 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 3940425140 is about 62772.8057362422. The cubic root of 3940425140 is about 1579.4808340747.

The spelling of 3940425140 in words is "three billion, nine hundred forty million, four hundred twenty-five thousand, one hundred forty".