40002422 has 8 divisors (see below), whose sum is σ = 60462072. Its totient is φ = 19848400.

The previous prime is 40002421. The next prime is 40002433. The reversal of 40002422 is 22420004.

It is a happy number.

40002422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 40002397 and 40002406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76079 + ... + 76602.

It is an arithmetic number, because the mean of its divisors is an integer number (7557759).

Almost surely, 2^40002422 is an apocalyptic number.

40002422 is a deficient number, since it is larger than the sum of its proper divisors (20459650).

40002422 is a wasteful number, since it uses less digits than its factorization.

40002422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152814.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 40002422 is about 6324.7467933507. The cubic root of 40002422 is about 342.0020917989.

Adding to 40002422 its reverse (22420004), we get a palindrome (62422426).

The spelling of 40002422 in words is "forty million, two thousand, four hundred twenty-two".