2180330629 has 4 divisors (see below), whose sum is σ = 2183551884. Its totient is φ = 2177109376.

The previous prime is 2180330623. The next prime is 2180330653. The reversal of 2180330629 is 9260330812.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1242562500 + 937768129 = 35250^2 + 30623^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180330629 - 2⁷ = 2180330501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2180330594 and 2180330603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180330623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609612 + ... + 1610965.

It is an arithmetic number, because the mean of its divisors is an integer number (545887971).

Almost surely, 2^2180330629 is an apocalyptic number.

It is an amenable number.

2180330629 is a deficient number, since it is larger than the sum of its proper divisors (3221255).

2180330629 is an equidigital number, since it uses as much as digits as its factorization.

2180330629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3221254.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2180330629 is about 46694.0106330566. The cubic root of 2180330629 is about 1296.7038050688.

The spelling of 2180330629 in words is "two billion, one hundred eighty million, three hundred thirty thousand, six hundred twenty-nine".