421133320 has 32 divisors (see below), whose sum is σ = 953377920. Its totient is φ = 167417280.

The previous prime is 421133311. The next prime is 421133329. The reversal of 421133320 is 23331124.

It is an interprime number because it is at equal distance from previous prime (421133311) and next prime (421133329).

It is not an unprimeable number, because it can be changed into a prime (421133329) 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 7 ways as a sum of consecutive naturals, for example, 25776 + ... + 38815.

It is an arithmetic number, because the mean of its divisors is an integer number (29793060).

Almost surely, 2^421133320 is an apocalyptic number.

421133320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421133320 is an abundant number, since it is smaller than the sum of its proper divisors (532244600).

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

421133320 is a wasteful number, since it uses less digits than its factorization.

421133320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64765 (or 64761 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 421133320 is about 20521.5330811321. The cubic root of 421133320 is about 749.5602281106.

Adding to 421133320 its reverse (23331124), we get a palindrome (444464444).

The spelling of 421133320 in words is "four hundred twenty-one million, one hundred thirty-three thousand, three hundred twenty".