2404102021 has 2 divisors, whose sum is σ = 2404102022. Its totient is φ = 2404102020.

The previous prime is 2404102013. The next prime is 2404102027. The reversal of 2404102021 is 1202014042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1636202500 + 767899521 = 40450^2 + 27711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2404102021 - 2³ = 2404102013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2404101986 and 2404102004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2404102027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202051010 + 1202051011.

It is an arithmetic number, because the mean of its divisors is an integer number (1202051011).

Almost surely, 2^2404102021 is an apocalyptic number.

It is an amenable number.

2404102021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2404102021 is an equidigital number, since it uses as much as digits as its factorization.

2404102021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2404102021 is about 49031.6430583353. The cubic root of 2404102021 is about 1339.6282515593.

Adding to 2404102021 its reverse (1202014042), we get a palindrome (3606116063).

The spelling of 2404102021 in words is "two billion, four hundred four million, one hundred two thousand, twenty-one".