102440339 has 2 divisors, whose sum is σ = 102440340. Its totient is φ = 102440338.

The previous prime is 102440323. The next prime is 102440357. The reversal of 102440339 is 933044201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102440339 - 2⁴ = 102440323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102440369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51220169 + 51220170.

It is an arithmetic number, because the mean of its divisors is an integer number (51220170).

Almost surely, 2^102440339 is an apocalyptic number.

102440339 is a deficient number, since it is larger than the sum of its proper divisors (1).

102440339 is an equidigital number, since it uses as much as digits as its factorization.

102440339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 102440339 is about 10121.2814900091. The cubic root of 102440339 is about 467.9042633570.

The spelling of 102440339 in words is "one hundred two million, four hundred forty thousand, three hundred thirty-nine".