2180365 has 16 divisors (see below), whose sum is σ = 2954880. Its totient is φ = 1529920.

The previous prime is 2180357. The next prime is 2180371. The reversal of 2180365 is 5630812.

It is a happy number.

It is not a de Polignac number, because 2180365 - 2³ = 2180357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (184680).

2^2180365 is an apocalyptic number.

It is an amenable number.

2180365 is a deficient number, since it is larger than the sum of its proper divisors (774515).

2180365 is a wasteful number, since it uses less digits than its factorization.

2180365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2180365 is about 1476.6059054467. The cubic root of 2180365 is about 129.6710618832.

The spelling of 2180365 in words is "two million, one hundred eighty thousand, three hundred sixty-five".