42401422 has 32 divisors (see below), whose sum is σ = 75741120. Its totient is φ = 17418240.

The previous prime is 42401399. The next prime is 42401423. The reversal of 42401422 is 22410424.

It is a self number, because there is not a number n which added to its sum of digits gives 42401422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42401423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73198 + ... + 73774.

It is an arithmetic number, because the mean of its divisors is an integer number (2366910).

Almost surely, 2^42401422 is an apocalyptic number.

42401422 is a deficient number, since it is larger than the sum of its proper divisors (33339698).

42401422 is a wasteful number, since it uses less digits than its factorization.

42401422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 42401422 is about 6511.6374284814. The cubic root of 42401422 is about 348.7065784422.

Adding to 42401422 its reverse (22410424), we get a palindrome (64811846).

The spelling of 42401422 in words is "forty-two million, four hundred one thousand, four hundred twenty-two".