2178132 has 48 divisors (see below), whose sum is σ = 5745600. Its totient is φ = 636160.

The previous prime is 2178131. The next prime is 2178133. The reversal of 2178132 is 2318712.

It is an interprime number because it is at equal distance from previous prime (2178131) and next prime (2178133).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2178131) 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, 3544 + ... + 4112.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^2178132 is an apocalyptic number.

2178132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2178132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872800).

2178132 is an abundant number, since it is smaller than the sum of its proper divisors (3567468).

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

2178132 is a wasteful number, since it uses less digits than its factorization.

2178132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 614 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 2178132 is about 1475.8495858318. The cubic root of 2178132 is about 129.6267796360.

It can be divided in two parts, 2178 and 132, that multiplied together give a cube (287496 = 66³).

The spelling of 2178132 in words is "two million, one hundred seventy-eight thousand, one hundred thirty-two".