2148683472 has 120 divisors (see below), whose sum is σ = 6543207944. Its totient is φ = 654262272.

The previous prime is 2148683423. The next prime is 2148683473. The reversal of 2148683472 is 2743868412.

It is a happy number.

2148683472 is a `hidden beast` number, since 21 + 4 + 86 + 83 + 472 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 397763136 + 1750920336 = 19944^2 + 41844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148683473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175668 + ... + 187500.

Almost surely, 2^2148683472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2148683472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3271603972).

2148683472 is an abundant number, since it is smaller than the sum of its proper divisors (4394524472).

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

2148683472 is a wasteful number, since it uses less digits than its factorization.

2148683472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11957 (or 11948 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2148683472 is about 46353.8938170247. The cubic root of 2148683472 is about 1290.3993859816.

The spelling of 2148683472 in words is "two billion, one hundred forty-eight million, six hundred eighty-three thousand, four hundred seventy-two".