3889406138 has 8 divisors (see below), whose sum is σ = 5842964160. Its totient is φ = 1941751420.

The previous prime is 3889406123. The next prime is 3889406141. The reversal of 3889406138 is 8316049883.

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, 1474178 + ... + 1476813.

It is an arithmetic number, because the mean of its divisors is an integer number (730370520).

Almost surely, 2^3889406138 is an apocalyptic number.

3889406138 is a deficient number, since it is larger than the sum of its proper divisors (1953558022).

3889406138 is a wasteful number, since it uses less digits than its factorization.

3889406138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951652.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 3889406138 is about 62365.1035275337. The cubic root of 3889406138 is about 1572.6343776723.

The spelling of 3889406138 in words is "three billion, eight hundred eighty-nine million, four hundred six thousand, one hundred thirty-eight".