3831389990 has 16 divisors (see below), whose sum is σ = 6926887152. Its totient is φ = 1525803744.

The previous prime is 3831389987. The next prime is 3831390001. The reversal of 3831389990 is 999831383.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841649 + ... + 846188.

It is an arithmetic number, because the mean of its divisors is an integer number (432930447).

Almost surely, 2^3831389990 is an apocalyptic number.

3831389990 is a deficient number, since it is larger than the sum of its proper divisors (3095497162).

3831389990 is a wasteful number, since it uses less digits than its factorization.

3831389990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688071.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The square root of 3831389990 is about 61898.2228339393. Note that the first 3 decimals coincide. The cubic root of 3831389990 is about 1564.7757969708.

The spelling of 3831389990 in words is "three billion, eight hundred thirty-one million, three hundred eighty-nine thousand, nine hundred ninety".