421601322 has 16 divisors (see below), whose sum is σ = 853362720. Its totient is φ = 138840432.

The previous prime is 421601269. The next prime is 421601329. The reversal of 421601322 is 223106124.

It is not an unprimeable number, because it can be changed into a prime (421601329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422797 + ... + 423792.

It is an arithmetic number, because the mean of its divisors is an integer number (53335170).

Almost surely, 2^421601322 is an apocalyptic number.

421601322 is an abundant number, since it is smaller than the sum of its proper divisors (431761398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421601322 is a wasteful number, since it uses less digits than its factorization.

421601322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846677.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 421601322 is about 20532.9326205489. The cubic root of 421601322 is about 749.8377853622.

Adding to 421601322 its reverse (223106124), we get a palindrome (644707446).

The spelling of 421601322 in words is "four hundred twenty-one million, six hundred one thousand, three hundred twenty-two".