42532339 has 2 divisors, whose sum is σ = 42532340. Its totient is φ = 42532338.

The previous prime is 42532331. The next prime is 42532349. The reversal of 42532339 is 93323524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42532339 - 2³ = 42532331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42532339.

It is not a weakly prime, because it can be changed into another prime (42532331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21266169 + 21266170.

It is an arithmetic number, because the mean of its divisors is an integer number (21266170).

Almost surely, 2^42532339 is an apocalyptic number.

42532339 is a deficient number, since it is larger than the sum of its proper divisors (1).

42532339 is an equidigital number, since it uses as much as digits as its factorization.

42532339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 31.

The square root of 42532339 is about 6521.6822216358. The cubic root of 42532339 is about 349.0650940560.

The spelling of 42532339 in words is "forty-two million, five hundred thirty-two thousand, three hundred thirty-nine".