1948394868 has 24 divisors (see below), whose sum is σ = 5195719872. Its totient is φ = 556684224.

The previous prime is 1948394867. The next prime is 1948394869. The reversal of 1948394868 is 8684938491.

It is an interprime number because it is at equal distance from previous prime (1948394867) and next prime (1948394869).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948394863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11597505 + ... + 11597672.

It is an arithmetic number, because the mean of its divisors is an integer number (216488328).

Almost surely, 2^1948394868 is an apocalyptic number.

It is an amenable number.

1948394868 is an abundant number, since it is smaller than the sum of its proper divisors (3247325004).

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

1948394868 is a wasteful number, since it uses less digits than its factorization.

1948394868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23195191 (or 23195189 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 60.

The square root of 1948394868 is about 44140.6260490265. The cubic root of 1948394868 is about 1248.9900894576.

The spelling of 1948394868 in words is "one billion, nine hundred forty-eight million, three hundred ninety-four thousand, eight hundred sixty-eight".