2404230021 has 12 divisors (see below), whose sum is σ = 3475618380. Its totient is φ = 1601508480.

The previous prime is 2404230001. The next prime is 2404230047. The reversal of 2404230021 is 1200324042.

2404230021 is a `hidden beast` number, since 240 + 423 + 0 + 0 + 2 + 1 = 666.

2404230021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1141493796 + 1262736225 = 33786^2 + 35535^2 .

It is not a de Polignac number, because 2404230021 - 2²⁵ = 2370675589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2404229976 and 2404230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404230001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97620 + ... + 119741.

It is an arithmetic number, because the mean of its divisors is an integer number (289634865).

Almost surely, 2^2404230021 is an apocalyptic number.

It is an amenable number.

2404230021 is a deficient number, since it is larger than the sum of its proper divisors (1071388359).

2404230021 is a wasteful number, since it uses less digits than its factorization.

2404230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218596 (or 218593 counting only the distinct ones).

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

The square root of 2404230021 is about 49032.9483204916. The cubic root of 2404230021 is about 1339.6520261152.

Adding to 2404230021 its reverse (1200324042), we get a palindrome (3604554063).

The spelling of 2404230021 in words is "two billion, four hundred four million, two hundred thirty thousand, twenty-one".