42958393 has 4 divisors (see below), whose sum is σ = 43476048. Its totient is φ = 42440740.

The previous prime is 42958387. The next prime is 42958397. The reversal of 42958393 is 39385924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42958393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42958397) 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, 258703 + ... + 258868.

It is an arithmetic number, because the mean of its divisors is an integer number (10869012).

Almost surely, 2^42958393 is an apocalyptic number.

It is an amenable number.

42958393 is a deficient number, since it is larger than the sum of its proper divisors (517655).

42958393 is an equidigital number, since it uses as much as digits as its factorization.

42958393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517654.

The product of its digits is 233280, while the sum is 43.

The square root of 42958393 is about 6554.2652524902. The cubic root of 42958393 is about 350.2267727651.

The spelling of 42958393 in words is "forty-two million, nine hundred fifty-eight thousand, three hundred ninety-three".