2178882 has 48 divisors (see below), whose sum is σ = 5204160. Its totient is φ = 655776.

The previous prime is 2178877. The next prime is 2178889. The reversal of 2178882 is 2888712.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2178889) 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, 7728 + ... + 8004.

It is an arithmetic number, because the mean of its divisors is an integer number (108420).

2^2178882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2178882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2602080).

2178882 is an abundant number, since it is smaller than the sum of its proper divisors (3025278).

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

2178882 is a wasteful number, since it uses less digits than its factorization.

2178882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 324 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 2178882 is about 1476.1036548969. The cubic root of 2178882 is about 129.6416561339.

It can be divided in two parts, 2178 and 882, that multiplied together give a square (1920996 = 1386²).

The spelling of 2178882 in words is "two million, one hundred seventy-eight thousand, eight hundred eighty-two".