3862128394 has 4 divisors (see below), whose sum is σ = 5793192594. Its totient is φ = 1931064196.

The previous prime is 3862128383. The next prime is 3862128407. The reversal of 3862128394 is 4938212683.

3862128394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3556333225 + 305795169 = 59635^2 + 17487^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965532097 + ... + 965532100.

Almost surely, 2^3862128394 is an apocalyptic number.

3862128394 is a deficient number, since it is larger than the sum of its proper divisors (1931064200).

3862128394 is a wasteful number, since it uses less digits than its factorization.

3862128394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931064199.

The product of its digits is 497664, while the sum is 46.

The square root of 3862128394 is about 62146.0247642599. The cubic root of 3862128394 is about 1568.9492738313.

The spelling of 3862128394 in words is "three billion, eight hundred sixty-two million, one hundred twenty-eight thousand, three hundred ninety-four".