42598013 has 4 divisors (see below), whose sum is σ = 44066940. Its totient is φ = 41129088.

The previous prime is 42597979. The next prime is 42598097. The reversal of 42598013 is 31089524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15578809 + 27019204 = 3947^2 + 5198^2 .

It is a cyclic number.

It is not a de Polignac number, because 42598013 - 2¹⁸ = 42335869 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 (42598613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734420 + ... + 734477.

It is an arithmetic number, because the mean of its divisors is an integer number (11016735).

Almost surely, 2^42598013 is an apocalyptic number.

It is an amenable number.

42598013 is a deficient number, since it is larger than the sum of its proper divisors (1468927).

42598013 is a wasteful number, since it uses less digits than its factorization.

42598013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468926.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 42598013 is about 6526.7153300876. The cubic root of 42598013 is about 349.2446649616.

The spelling of 42598013 in words is "forty-two million, five hundred ninety-eight thousand, thirteen".