42404359 has 2 divisors, whose sum is σ = 42404360. Its totient is φ = 42404358.

The previous prime is 42404269. The next prime is 42404363. The reversal of 42404359 is 95340424.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42404359 - 2⁷ = 42404231 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42404359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42404759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21202179 + 21202180.

It is an arithmetic number, because the mean of its divisors is an integer number (21202180).

Almost surely, 2^42404359 is an apocalyptic number.

42404359 is a deficient number, since it is larger than the sum of its proper divisors (1).

42404359 is an equidigital number, since it uses as much as digits as its factorization.

42404359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 42404359 is about 6511.8629438894. The cubic root of 42404359 is about 348.7146294896.

The spelling of 42404359 in words is "forty-two million, four hundred four thousand, three hundred fifty-nine".