2173280004 has 48 divisors (see below), whose sum is σ = 6439350400. Its totient is φ = 620936928.

The previous prime is 2173279973. The next prime is 2173280009. The reversal of 2173280004 is 4000823712.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2173280004.

It is not an unprimeable number, because it can be changed into a prime (2173280009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1436599 + ... + 1438110.

Almost surely, 2^2173280004 is an apocalyptic number.

It is an amenable number.

2173280004 is an abundant number, since it is smaller than the sum of its proper divisors (4266070396).

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

2173280004 is a wasteful number, since it uses less digits than its factorization.

2173280004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874729 (or 2874721 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2173280004 is about 46618.4513256286. The cubic root of 2173280004 is about 1295.3045608761.

The spelling of 2173280004 in words is "two billion, one hundred seventy-three million, two hundred eighty thousand, four".