421442322 has 32 divisors (see below), whose sum is σ = 969447552. Its totient is φ = 119643264.

The previous prime is 421442311. The next prime is 421442341. The reversal of 421442322 is 223244124.

It is a super-2 number, since 2×421442322² = 355227261545503368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421442292 and 421442301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25363 + ... + 38550.

It is an arithmetic number, because the mean of its divisors is an integer number (30295236).

Almost surely, 2^421442322 is an apocalyptic number.

421442322 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

421442322 is an abundant number, since it is smaller than the sum of its proper divisors (548005230).

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

421442322 is a wasteful number, since it uses less digits than its factorization.

421442322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64082.

The product of its digits is 3072, while the sum is 24.

The square root of 421442322 is about 20529.0604266245. The cubic root of 421442322 is about 749.7435105164.

Adding to 421442322 its reverse (223244124), we get a palindrome (644686446).

The spelling of 421442322 in words is "four hundred twenty-one million, four hundred forty-two thousand, three hundred twenty-two".