42361243 has 4 divisors (see below), whose sum is σ = 42941608. Its totient is φ = 41780880.

The previous prime is 42361217. The next prime is 42361247. The reversal of 42361243 is 34216324.

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 42361243 - 2⁵ = 42361211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42361247) 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, 290073 + ... + 290218.

It is an arithmetic number, because the mean of its divisors is an integer number (10735402).

Almost surely, 2^42361243 is an apocalyptic number.

42361243 is a deficient number, since it is larger than the sum of its proper divisors (580365).

42361243 is an equidigital number, since it uses as much as digits as its factorization.

42361243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580364.

The product of its digits is 3456, while the sum is 25.

The square root of 42361243 is about 6508.5515285661. The cubic root of 42361243 is about 348.5964004598.

Adding to 42361243 its reverse (34216324), we get a palindrome (76577567).

The spelling of 42361243 in words is "forty-two million, three hundred sixty-one thousand, two hundred forty-three".