421367320 has 64 divisors (see below), whose sum is σ = 1058365440. Its totient is φ = 149654400.

The previous prime is 421367311. The next prime is 421367327. The reversal of 421367320 is 23763124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421367327) 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 15 ways as a sum of consecutive naturals, for example, 7785 + ... + 30055.

It is an arithmetic number, because the mean of its divisors is an integer number (16536960).

Almost surely, 2^421367320 is an apocalyptic number.

421367320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421367320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529182720).

421367320 is an abundant number, since it is smaller than the sum of its proper divisors (636998120).

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

421367320 is a wasteful number, since it uses less digits than its factorization.

421367320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22336 (or 22332 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 421367320 is about 20527.2336178064. The cubic root of 421367320 is about 749.6990318330.

The spelling of 421367320 in words is "four hundred twenty-one million, three hundred sixty-seven thousand, three hundred twenty".