1395944886 has 32 divisors (see below), whose sum is σ = 3226590720. Its totient is φ = 394358976.

The previous prime is 1395944863. The next prime is 1395944887. The reversal of 1395944886 is 6884495931.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395944887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182986 + ... + 190461.

It is an arithmetic number, because the mean of its divisors is an integer number (100830960).

Almost surely, 2^1395944886 is an apocalyptic number.

1395944886 is an abundant number, since it is smaller than the sum of its proper divisors (1830645834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1395944886 is a wasteful number, since it uses less digits than its factorization.

1395944886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373548.

The product of its digits is 7464960, while the sum is 57.

The square root of 1395944886 is about 37362.3458310637. The cubic root of 1395944886 is about 1117.6077996594.

The spelling of 1395944886 in words is "one billion, three hundred ninety-five million, nine hundred forty-four thousand, eight hundred eighty-six".