2220694473 has 4 divisors (see below), whose sum is σ = 2960925968. Its totient is φ = 1480462980.

The previous prime is 2220694471. The next prime is 2220694481. The reversal of 2220694473 is 3744960222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2220694473 - 2¹ = 2220694471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220694471) 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, 370115743 + ... + 370115748.

It is an arithmetic number, because the mean of its divisors is an integer number (740231492).

Almost surely, 2^2220694473 is an apocalyptic number.

It is an amenable number.

2220694473 is a deficient number, since it is larger than the sum of its proper divisors (740231495).

2220694473 is an equidigital number, since it uses as much as digits as its factorization.

2220694473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740231494.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 2220694473 is about 47124.2450655711. The cubic root of 2220694473 is about 1304.6567650335.

The spelling of 2220694473 in words is "two billion, two hundred twenty million, six hundred ninety-four thousand, four hundred seventy-three".