422420413 has 8 divisors (see below), whose sum is σ = 428571000. Its totient is φ = 416279808.

The previous prime is 422420381. The next prime is 422420429. The reversal of 422420413 is 314024224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23299929 + 399120484 = 4827^2 + 19978^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 422420413 - 2⁵ = 422420381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422420113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140793 + ... + 143761.

It is an arithmetic number, because the mean of its divisors is an integer number (53571375).

Almost surely, 2^422420413 is an apocalyptic number.

It is an amenable number.

422420413 is a deficient number, since it is larger than the sum of its proper divisors (6150587).

422420413 is a wasteful number, since it uses less digits than its factorization.

422420413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 422420413 is about 20552.8687292066. The cubic root of 422420413 is about 750.3230685194.

Adding to 422420413 its reverse (314024224), we get a palindrome (736444637).

The spelling of 422420413 in words is "four hundred twenty-two million, four hundred twenty thousand, four hundred thirteen".