2173288442 has 8 divisors (see below), whose sum is σ = 3510696756. Its totient is φ = 1003056192.

The previous prime is 2173288441. The next prime is 2173288451. The reversal of 2173288442 is 2448823712.

It can be written as a sum of positive squares in 2 ways, for example, as 1557801961 + 615486481 = 39469^2 + 24809^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2173288442.

It is not an unprimeable number, because it can be changed into a prime (2173288441) 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, 41793983 + ... + 41794034.

Almost surely, 2^2173288442 is an apocalyptic number.

2173288442 is a deficient number, since it is larger than the sum of its proper divisors (1337408314).

2173288442 is a wasteful number, since it uses less digits than its factorization.

2173288442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83588032.

The product of its digits is 172032, while the sum is 41.

The square root of 2173288442 is about 46618.5418261876. The cubic root of 2173288442 is about 1295.3062372616.

The spelling of 2173288442 in words is "two billion, one hundred seventy-three million, two hundred eighty-eight thousand, four hundred forty-two".