42210422 has 8 divisors (see below), whose sum is σ = 67040136. Its totient is φ = 19863712.

The previous prime is 42210409. The next prime is 42210431. The reversal of 42210422 is 22401224.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 42210422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620708 + ... + 620775.

It is an arithmetic number, because the mean of its divisors is an integer number (8380017).

Almost surely, 2^42210422 is an apocalyptic number.

42210422 is a deficient number, since it is larger than the sum of its proper divisors (24829714).

42210422 is a wasteful number, since it uses less digits than its factorization.

42210422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241502.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42210422 is about 6496.9548251469. The cubic root of 42210422 is about 348.1821996977.

Adding to 42210422 its reverse (22401224), we get a palindrome (64611646).

The spelling of 42210422 in words is "forty-two million, two hundred ten thousand, four hundred twenty-two".