42942593 has 2 divisors, whose sum is σ = 42942594. Its totient is φ = 42942592.

The previous prime is 42942577. The next prime is 42942617. The reversal of 42942593 is 39524924.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42941809 + 784 = 6553^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 42942593 - 2⁴ = 42942577 is a prime.

It is not a weakly prime, because it can be changed into another prime (42942553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21471296 + 21471297.

It is an arithmetic number, because the mean of its divisors is an integer number (21471297).

Almost surely, 2^42942593 is an apocalyptic number.

It is an amenable number.

42942593 is a deficient number, since it is larger than the sum of its proper divisors (1).

42942593 is an equidigital number, since it uses as much as digits as its factorization.

42942593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 42942593 is about 6553.0598196568. The cubic root of 42942593 is about 350.1838299610.

The spelling of 42942593 in words is "forty-two million, nine hundred forty-two thousand, five hundred ninety-three".