42029959 has 2 divisors, whose sum is σ = 42029960. Its totient is φ = 42029958.

The previous prime is 42029951. The next prime is 42029987. The reversal of 42029959 is 95992024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42029959 - 2³ = 42029951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42029951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21014979 + 21014980.

It is an arithmetic number, because the mean of its divisors is an integer number (21014980).

Almost surely, 2^42029959 is an apocalyptic number.

42029959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42029959 is an equidigital number, since it uses as much as digits as its factorization.

42029959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 42029959 is about 6483.0516734020. The cubic root of 42029959 is about 347.6852942752.

It can be divided in two parts, 4202 and 9959, that added together give a square (14161 = 119²).

The spelling of 42029959 in words is "forty-two million, twenty-nine thousand, nine hundred fifty-nine".