2148378108 has 48 divisors (see below), whose sum is σ = 5376309120. Its totient is φ = 665630784.

The previous prime is 2148378107. The next prime is 2148378139. The reversal of 2148378108 is 8018738412.

It is a self number, because there is not a number n which added to its sum of digits gives 2148378108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148378107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76810 + ... + 100977.

It is an arithmetic number, because the mean of its divisors is an integer number (112006440).

Almost surely, 2^2148378108 is an apocalyptic number.

It is an amenable number.

2148378108 is an abundant number, since it is smaller than the sum of its proper divisors (3227931012).

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

2148378108 is a wasteful number, since it uses less digits than its factorization.

2148378108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177866 (or 177864 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 2148378108 is about 46350.5998666684. The cubic root of 2148378108 is about 1290.3382539456.

The spelling of 2148378108 in words is "two billion, one hundred forty-eight million, three hundred seventy-eight thousand, one hundred eight".