42599 has 4 divisors (see below), whose sum is σ = 43680. Its totient is φ = 41520.
The previous prime is 42589. The next prime is 42611. The reversal of 42599 is 99524.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-42599 is a prime.
It is a d-powerful number, because it can be written as 43 + 215 + 55 + 92 + 94 .
It is a Duffinian number.
Its product of digits (3240) is a multiple of the sum of its prime divisors (1080).
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42599.
It is not an unprimeable number, because it can be changed into a prime (42509) 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, 479 + ... + 560.
It is an arithmetic number, because the mean of its divisors is an integer number (10920).
242599 is an apocalyptic number.
42599 is a deficient number, since it is larger than the sum of its proper divisors (1081).
42599 is a wasteful number, since it uses less digits than its factorization.
42599 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1080.
The product of its digits is 3240, while the sum is 29.
The square root of 42599 is about 206.3952518834. The cubic root of 42599 is about 34.9247362285.
The spelling of 42599 in words is "forty-two thousand, five hundred ninety-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.062 sec. • engine limits •