3942910385 has 8 divisors (see below), whose sum is σ = 5009815656. Its totient is φ = 2968779520.

The previous prime is 3942910373. The next prime is 3942910423. The reversal of 3942910385 is 5830192493.

It can be written as a sum of positive squares in 4 ways, for example, as 1446509089 + 2496401296 = 38033^2 + 49964^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-3942910385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23193506 + ... + 23193675.

It is an arithmetic number, because the mean of its divisors is an integer number (626226957).

Almost surely, 2^3942910385 is an apocalyptic number.

It is an amenable number.

3942910385 is a deficient number, since it is larger than the sum of its proper divisors (1066905271).

3942910385 is a wasteful number, since it uses less digits than its factorization.

3942910385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46387203.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 3942910385 is about 62792.5981704850. The cubic root of 3942910385 is about 1579.8128263293.

The spelling of 3942910385 in words is "three billion, nine hundred forty-two million, nine hundred ten thousand, three hundred eighty-five".