42436293 has 4 divisors (see below), whose sum is σ = 56581728. Its totient is φ = 28290860.

The previous prime is 42436279. The next prime is 42436321. The reversal of 42436293 is 39263424.

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 not a de Polignac number, because 42436293 - 2¹² = 42432197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42436223) 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, 7072713 + ... + 7072718.

It is an arithmetic number, because the mean of its divisors is an integer number (14145432).

Almost surely, 2^42436293 is an apocalyptic number.

It is an amenable number.

42436293 is a deficient number, since it is larger than the sum of its proper divisors (14145435).

42436293 is a wasteful number, since it uses less digits than its factorization.

42436293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145434.

The product of its digits is 31104, while the sum is 33.

The square root of 42436293 is about 6514.3144689215. The cubic root of 42436293 is about 348.8021445392.

The spelling of 42436293 in words is "forty-two million, four hundred thirty-six thousand, two hundred ninety-three".