2240300021 has 2 divisors, whose sum is σ = 2240300022. Its totient is φ = 2240300020.

The previous prime is 2240300017. The next prime is 2240300059. The reversal of 2240300021 is 1200030422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2107819921 + 132480100 = 45911^2 + 11510^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240300021 - 2² = 2240300017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2240299969 and 2240300005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240300071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120150010 + 1120150011.

It is an arithmetic number, because the mean of its divisors is an integer number (1120150011).

Almost surely, 2^2240300021 is an apocalyptic number.

It is an amenable number.

2240300021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240300021 is an equidigital number, since it uses as much as digits as its factorization.

2240300021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2240300021 is about 47331.8077089815. The cubic root of 2240300021 is about 1308.4849374548.

Adding to 2240300021 its reverse (1200030422), we get a palindrome (3440330443).

The spelling of 2240300021 in words is "two billion, two hundred forty million, three hundred thousand, twenty-one".