2180748 has 12 divisors (see below), whose sum is σ = 5088440. Its totient is φ = 726912.

The previous prime is 2180747. The next prime is 2180797. The reversal of 2180748 is 8470812.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2180741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90853 + ... + 90876.

2^2180748 is an apocalyptic number.

It is an amenable number.

2180748 is an abundant number, since it is smaller than the sum of its proper divisors (2907692).

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

2180748 is a wasteful number, since it uses less digits than its factorization.

2180748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181736 (or 181734 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 2180748 is about 1476.7355890612. The cubic root of 2180748 is about 129.6786540538.

Subtracting 2180748 from its reverse (8470812), we obtain a square (6290064 = 2508²).

The spelling of 2180748 in words is "two million, one hundred eighty thousand, seven hundred forty-eight".