42210043 has 4 divisors (see below), whose sum is σ = 42234928. Its totient is φ = 42185160.

The previous prime is 42210023. The next prime is 42210053. The reversal of 42210043 is 34001224.

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 42210043 - 2¹³ = 42201851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42209999 and 42210026.

It is not an unprimeable number, because it can be changed into a prime (42210013) 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, 9696 + ... + 13357.

It is an arithmetic number, because the mean of its divisors is an integer number (10558732).

Almost surely, 2^42210043 is an apocalyptic number.

42210043 is a deficient number, since it is larger than the sum of its proper divisors (24885).

42210043 is a wasteful number, since it uses less digits than its factorization.

42210043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24884.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42210043 is about 6496.9256575707. The cubic root of 42210043 is about 348.1811576055.

Adding to 42210043 its reverse (34001224), we get a palindrome (76211267).

The spelling of 42210043 in words is "forty-two million, two hundred ten thousand, forty-three".