30342493 has 2 divisors, whose sum is σ = 30342494. Its totient is φ = 30342492.

The previous prime is 30342413. The next prime is 30342511. The reversal of 30342493 is 39424303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27899524 + 2442969 = 5282^2 + 1563^2 .

It is a cyclic number.

It is not a de Polignac number, because 30342493 - 2⁹ = 30341981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30342413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15171246 + 15171247.

It is an arithmetic number, because the mean of its divisors is an integer number (15171247).

Almost surely, 2^30342493 is an apocalyptic number.

It is an amenable number.

30342493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30342493 is an equidigital number, since it uses as much as digits as its factorization.

30342493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 30342493 is about 5508.4020368887. The cubic root of 30342493 is about 311.9012295561.

Adding to 30342493 its reverse (39424303), we get a palindrome (69766796).

The spelling of 30342493 in words is "thirty million, three hundred forty-two thousand, four hundred ninety-three".