422740043 has 8 divisors (see below), whose sum is σ = 470983680. Its totient is φ = 376131880.

The previous prime is 422740039. The next prime is 422740061. The reversal of 422740043 is 340047224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422740043 - 2² = 422740039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422739994 and 422740021.

It is not an unprimeable number, because it can be changed into a prime (422740543) 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 7 ways as a sum of consecutive naturals, for example, 408323 + ... + 409356.

It is an arithmetic number, because the mean of its divisors is an integer number (58872960).

Almost surely, 2^422740043 is an apocalyptic number.

422740043 is a deficient number, since it is larger than the sum of its proper divisors (48243637).

422740043 is a wasteful number, since it uses less digits than its factorization.

422740043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817737.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 422740043 is about 20560.6430590096. The cubic root of 422740043 is about 750.5122681029.

Adding to 422740043 its reverse (340047224), we get a palindrome (762787267).

The spelling of 422740043 in words is "four hundred twenty-two million, seven hundred forty thousand, forty-three".