42222043 has 4 divisors (see below), whose sum is σ = 44057808. Its totient is φ = 40386280.

The previous prime is 42222041. The next prime is 42222049. The reversal of 42222043 is 34022224.

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 42222043 - 2¹ = 42222041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42222043.

It is not an unprimeable number, because it can be changed into a prime (42222041) 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, 917848 + ... + 917893.

It is an arithmetic number, because the mean of its divisors is an integer number (11014452).

Almost surely, 2^42222043 is an apocalyptic number.

42222043 is a deficient number, since it is larger than the sum of its proper divisors (1835765).

42222043 is a wasteful number, since it uses less digits than its factorization.

42222043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835764.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42222043 is about 6497.8491056657. The cubic root of 42222043 is about 348.2141495802.

Adding to 42222043 its reverse (34022224), we get a palindrome (76244267).

The spelling of 42222043 in words is "forty-two million, two hundred twenty-two thousand, forty-three".