42650243 has 4 divisors (see below), whose sum is σ = 42772800. Its totient is φ = 42527688.

The previous prime is 42650239. The next prime is 42650249. The reversal of 42650243 is 34205624.

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 42650243 - 2² = 42650239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42650249) 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, 60755 + ... + 61452.

It is an arithmetic number, because the mean of its divisors is an integer number (10693200).

Almost surely, 2^42650243 is an apocalyptic number.

42650243 is a deficient number, since it is larger than the sum of its proper divisors (122557).

42650243 is a wasteful number, since it uses less digits than its factorization.

42650243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122556.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42650243 is about 6530.7153513225. The cubic root of 42650243 is about 349.3873445331.

Adding to 42650243 its reverse (34205624), we get a palindrome (76855867).

The spelling of 42650243 in words is "forty-two million, six hundred fifty thousand, two hundred forty-three".