4340150021 has 2 divisors, whose sum is σ = 4340150022. Its totient is φ = 4340150020.

The previous prime is 4340149973. The next prime is 4340150027. The reversal of 4340150021 is 1200510434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4186737025 + 153412996 = 64705^2 + 12386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4340150021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4340149975 and 4340150002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4340150027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2170075010 + 2170075011.

It is an arithmetic number, because the mean of its divisors is an integer number (2170075011).

Almost surely, 2^4340150021 is an apocalyptic number.

It is an amenable number.

4340150021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4340150021 is an equidigital number, since it uses as much as digits as its factorization.

4340150021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4340150021 is about 65879.8149739357. The cubic root of 4340150021 is about 1631.1788455020.

Adding to 4340150021 its reverse (1200510434), we get a palindrome (5540660455).

The spelling of 4340150021 in words is "four billion, three hundred forty million, one hundred fifty thousand, twenty-one".