2180338 has 4 divisors (see below), whose sum is σ = 3270510. Its totient is φ = 1090168.

The previous prime is 2180333. The next prime is 2180341. The reversal of 2180338 is 8330812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2169729 + 10609 = 1473^2 + 103^2 .

It is not an unprimeable number, because it can be changed into a prime (2180333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545083 + ... + 545086.

2^2180338 is an apocalyptic number.

2180338 is a deficient number, since it is larger than the sum of its proper divisors (1090172).

2180338 is a wasteful number, since it uses less digits than its factorization.

2180338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090171.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2180338 is about 1476.5967628300. The cubic root of 2180338 is about 129.6705266314.

The spelling of 2180338 in words is "two million, one hundred eighty thousand, three hundred thirty-eight".