2173241730 has 64 divisors (see below), whose sum is σ = 5886172800. Its totient is φ = 508677120.

The previous prime is 2173241683. The next prime is 2173241737. The reversal of 2173241730 is 371423712.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2173241737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103975 + ... + 123114.

It is an arithmetic number, because the mean of its divisors is an integer number (91971450).

Almost surely, 2^2173241730 is an apocalyptic number.

2173241730 is an abundant number, since it is smaller than the sum of its proper divisors (3712931070).

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

2173241730 is a wasteful number, since it uses less digits than its factorization.

2173241730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227139.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2173241730 is about 46618.0408211242. The cubic root of 2173241730 is about 1295.2969568892.

The spelling of 2173241730 in words is "two billion, one hundred seventy-three million, two hundred forty-one thousand, seven hundred thirty".