3940684758 has 12 divisors (see below), whose sum is σ = 8538150348. Its totient is φ = 1313561580.

The previous prime is 3940684697. The next prime is 3940684831. The reversal of 3940684758 is 8574860493.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 109463448 + ... + 109463483.

It is an arithmetic number, because the mean of its divisors is an integer number (711512529).

Almost surely, 2^3940684758 is an apocalyptic number.

3940684758 is an abundant number, since it is smaller than the sum of its proper divisors (4597465590).

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

3940684758 is a wasteful number, since it uses less digits than its factorization.

3940684758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218926939 (or 218926936 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 3940684758 is about 62774.8736199445. The cubic root of 3940684758 is about 1579.5155217573.

The spelling of 3940684758 in words is "three billion, nine hundred forty million, six hundred eighty-four thousand, seven hundred fifty-eight".