2123002404 has 18 divisors (see below), whose sum is σ = 5366478390. Its totient is φ = 707667456.

The previous prime is 2123002379. The next prime is 2123002439. The reversal of 2123002404 is 4042003212.

It can be written as a sum of positive squares in only one way, i.e., 2087576100 + 35426304 = 45690^2 + 5952^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29486109 + ... + 29486180.

Almost surely, 2^2123002404 is an apocalyptic number.

It is an amenable number.

2123002404 is an abundant number, since it is smaller than the sum of its proper divisors (3243475986).

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

2123002404 is a wasteful number, since it uses less digits than its factorization.

2123002404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58972299 (or 58972294 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2123002404 is about 46076.0502213460. The cubic root of 2123002404 is about 1285.2378155536.

Adding to 2123002404 its reverse (4042003212), we get a palindrome (6165005616).

The spelling of 2123002404 in words is "two billion, one hundred twenty-three million, two thousand, four hundred four".