422000043 has 4 divisors (see below), whose sum is σ = 562666728. Its totient is φ = 281333360.

The previous prime is 422000009. The next prime is 422000053. The reversal of 422000043 is 340000224.

It is a happy number.

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 422000043 - 2¹⁶ = 421934507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421999986 and 422000031.

It is not an unprimeable number, because it can be changed into a prime (422000053) 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, 70333338 + ... + 70333343.

It is an arithmetic number, because the mean of its divisors is an integer number (140666682).

Almost surely, 2^422000043 is an apocalyptic number.

422000043 is a deficient number, since it is larger than the sum of its proper divisors (140666685).

422000043 is a wasteful number, since it uses less digits than its factorization.

422000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140666684.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 422000043 is about 20542.6396307777. The cubic root of 422000043 is about 750.0740922358.

Adding to 422000043 its reverse (340000224), we get a palindrome (762000267).

The spelling of 422000043 in words is "four hundred twenty-two million, forty-three", and thus it is an aban number.