2220716429 has 4 divisors (see below), whose sum is σ = 2251137276. Its totient is φ = 2190295584.

The previous prime is 2220716411. The next prime is 2220716473. The reversal of 2220716429 is 9246170222.

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 1766941225 + 453775204 = 42035^2 + 21302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220716429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220716929) 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, 15210314 + ... + 15210459.

It is an arithmetic number, because the mean of its divisors is an integer number (562784319).

Almost surely, 2^2220716429 is an apocalyptic number.

It is an amenable number.

2220716429 is a deficient number, since it is larger than the sum of its proper divisors (30420847).

2220716429 is an equidigital number, since it uses as much as digits as its factorization.

2220716429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30420846.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 2220716429 is about 47124.4780236344. The cubic root of 2220716429 is about 1304.6610647319.

The spelling of 2220716429 in words is "two billion, two hundred twenty million, seven hundred sixteen thousand, four hundred twenty-nine".