2180522 has 16 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 1007808.

The previous prime is 2180501. The next prime is 2180527. The reversal of 2180522 is 2250812.

It is a junction number, because it is equal to n+sod(n) for n = 2180494 and 2180503.

It is not an unprimeable number, because it can be changed into a prime (2180527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

2^2180522 is an apocalyptic number.

2180522 is a deficient number, since it is larger than the sum of its proper divisors (1344598).

2180522 is a wasteful number, since it uses less digits than its factorization.

2180522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2180522 is about 1476.6590669481. The cubic root of 2180522 is about 129.6741741860.

It can be divided in two parts, 21805 and 22, that multiplied together give a triangular number (479710 = T₉₇₉).

The spelling of 2180522 in words is "two million, one hundred eighty thousand, five hundred twenty-two".