3939256990 has 8 divisors (see below), whose sum is σ = 7090662600. Its totient is φ = 1575702792.

The previous prime is 3939256967. The next prime is 3939257029. The reversal of 3939256990 is 996529393.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 196962840 + ... + 196962859.

It is an arithmetic number, because the mean of its divisors is an integer number (886332825).

Almost surely, 2^3939256990 is an apocalyptic number.

3939256990 is a deficient number, since it is larger than the sum of its proper divisors (3151405610).

3939256990 is a wasteful number, since it uses less digits than its factorization.

3939256990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393925706.

The product of its (nonzero) digits is 3542940, while the sum is 55.

The square root of 3939256990 is about 62763.5004600604. The cubic root of 3939256990 is about 1579.3247381522.

The spelling of 3939256990 in words is "three billion, nine hundred thirty-nine million, two hundred fifty-six thousand, nine hundred ninety".