2180670 has 16 divisors (see below), whose sum is σ = 5233680. Its totient is φ = 581504.

The previous prime is 2180627. The next prime is 2180677. The reversal of 2180670 is 760812.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2180670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180677) 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, 36315 + ... + 36374.

It is an arithmetic number, because the mean of its divisors is an integer number (327105).

2^2180670 is an apocalyptic number.

2180670 is an abundant number, since it is smaller than the sum of its proper divisors (3053010).

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

2180670 is a wasteful number, since it uses less digits than its factorization.

2180670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72699.

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

The square root of 2180670 is about 1476.7091792225. The cubic root of 2180670 is about 129.6771079397.

It can be divided in two parts, 2180 and 670, that added together give a triangular number (2850 = T₇₅).

The spelling of 2180670 in words is "two million, one hundred eighty thousand, six hundred seventy".