42994583 has 4 divisors (see below), whose sum is σ = 43124808. Its totient is φ = 42864360.

The previous prime is 42994577. The next prime is 42994603. The reversal of 42994583 is 38549924.

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

It is a cyclic number.

It is not a de Polignac number, because 42994583 - 2¹⁸ = 42732439 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 (42993583) 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 in 3 ways as a sum of consecutive naturals, for example, 64616 + ... + 65277.

It is an arithmetic number, because the mean of its divisors is an integer number (10781202).

Almost surely, 2^42994583 is an apocalyptic number.

42994583 is a deficient number, since it is larger than the sum of its proper divisors (130225).

42994583 is a wasteful number, since it uses less digits than its factorization.

42994583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130224.

The product of its digits is 311040, while the sum is 44.

The square root of 42994583 is about 6557.0254689150. The cubic root of 42994583 is about 350.3250938648.

The spelling of 42994583 in words is "forty-two million, nine hundred ninety-four thousand, five hundred eighty-three".