421321348 has 24 divisors (see below), whose sum is σ = 860573952. Its totient is φ = 176723904.

The previous prime is 421321253. The next prime is 421321391. The reversal of 421321348 is 843123124.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 158761 + ... + 161392.

It is an arithmetic number, because the mean of its divisors is an integer number (35857248).

Almost surely, 2^421321348 is an apocalyptic number.

It is an amenable number.

421321348 is an abundant number, since it is smaller than the sum of its proper divisors (439252604).

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

421321348 is a wasteful number, since it uses less digits than its factorization.

421321348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320211 (or 320209 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 421321348 is about 20526.1138065636. The cubic root of 421321348 is about 749.6717662971.

The spelling of 421321348 in words is "four hundred twenty-one million, three hundred twenty-one thousand, three hundred forty-eight".