42603439 has 2 divisors, whose sum is σ = 42603440. Its totient is φ = 42603438.

The previous prime is 42603409. The next prime is 42603461. The reversal of 42603439 is 93430624.

42603439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42603439 - 2²¹ = 40506287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42603439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42603409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21301719 + 21301720.

It is an arithmetic number, because the mean of its divisors is an integer number (21301720).

Almost surely, 2^42603439 is an apocalyptic number.

42603439 is a deficient number, since it is larger than the sum of its proper divisors (1).

42603439 is an equidigital number, since it uses as much as digits as its factorization.

42603439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 42603439 is about 6527.1309930168. The cubic root of 42603439 is about 349.2594928918.

The spelling of 42603439 in words is "forty-two million, six hundred three thousand, four hundred thirty-nine".