3909734378 has 8 divisors (see below), whose sum is σ = 6397747200. Its totient is φ = 1777151980.

The previous prime is 3909734357. The next prime is 3909734393. The reversal of 3909734378 is 8734379093.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88857578 + ... + 88857621.

It is an arithmetic number, because the mean of its divisors is an integer number (799718400).

Almost surely, 2^3909734378 is an apocalyptic number.

3909734378 is a deficient number, since it is larger than the sum of its proper divisors (2488012822).

3909734378 is a wasteful number, since it uses less digits than its factorization.

3909734378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177715212.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The square root of 3909734378 is about 62527.8688106352. The cubic root of 3909734378 is about 1575.3694442649.

The spelling of 3909734378 in words is "three billion, nine hundred nine million, seven hundred thirty-four thousand, three hundred seventy-eight".