2179380 has 48 divisors (see below), whose sum is σ = 6975360. Its totient is φ = 498048.

The previous prime is 2179367. The next prime is 2179391. The reversal of 2179380 is 839712.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2175 + ... + 3014.

It is an arithmetic number, because the mean of its divisors is an integer number (145320).

2^2179380 is an apocalyptic number.

2179380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2179380 is an abundant number, since it is smaller than the sum of its proper divisors (4795980).

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

2179380 is a wasteful number, since it uses less digits than its factorization.

2179380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208 (or 5206 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2179380 is about 1476.2723325999. The cubic root of 2179380 is about 129.6515322426.

It can be divided in two parts, 21 and 79380, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 2179380 in words is "two million, one hundred seventy-nine thousand, three hundred eighty".