42641959 has 4 divisors (see below), whose sum is σ = 42656104. Its totient is φ = 42627816.

The previous prime is 42641881. The next prime is 42641969. The reversal of 42641959 is 95914624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42641959 - 2¹⁷ = 42510887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42641969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537 + ... + 9250.

It is an arithmetic number, because the mean of its divisors is an integer number (10664026).

Almost surely, 2^42641959 is an apocalyptic number.

42641959 is a deficient number, since it is larger than the sum of its proper divisors (14145).

42641959 is an equidigital number, since it uses as much as digits as its factorization.

42641959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144.

The product of its digits is 77760, while the sum is 40.

The square root of 42641959 is about 6530.0810867860. The cubic root of 42641959 is about 349.3647224488.

The spelling of 42641959 in words is "forty-two million, six hundred forty-one thousand, nine hundred fifty-nine".