42222430 has 8 divisors (see below), whose sum is σ = 76000392. Its totient is φ = 16888968.

The previous prime is 42222421. The next prime is 42222437. The reversal of 42222430 is 3422224.

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

It is a junction number, because it is equal to n+sod(n) for n = 42222398 and 42222407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42222437) 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, 2111112 + ... + 2111131.

It is an arithmetic number, because the mean of its divisors is an integer number (9500049).

Almost surely, 2^42222430 is an apocalyptic number.

42222430 is a deficient number, since it is larger than the sum of its proper divisors (33777962).

42222430 is a wasteful number, since it uses less digits than its factorization.

42222430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222250.

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

The square root of 42222430 is about 6497.8788846823. The cubic root of 42222430 is about 348.2152134674.

Adding to 42222430 its reverse (3422224), we get a palindrome (45644654).

The spelling of 42222430 in words is "forty-two million, two hundred twenty-two thousand, four hundred thirty".