2180240670 has 32 divisors (see below), whose sum is σ = 5234019840. Its totient is φ = 581237280.

The previous prime is 2180240669. The next prime is 2180240693. The reversal of 2180240670 is 760420812.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135135 + ... + 150405.

It is an arithmetic number, because the mean of its divisors is an integer number (163563120).

Almost surely, 2^2180240670 is an apocalyptic number.

2180240670 is an abundant number, since it is smaller than the sum of its proper divisors (3053779170).

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

2180240670 is a wasteful number, since it uses less digits than its factorization.

2180240670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20040.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2180240670 is about 46693.0473411192. The cubic root of 2180240670 is about 1296.6859711097.

The spelling of 2180240670 in words is "two billion, one hundred eighty million, two hundred forty thousand, six hundred seventy".