421300432 has 30 divisors (see below), whose sum is σ = 949539858. Its totient is φ = 180556992.

The previous prime is 421300421. The next prime is 421300469. The reversal of 421300432 is 234003124.

It can be written as a sum of positive squares in only one way, i.e., 294602896 + 126697536 = 17164^2 + 11256^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 267903 + ... + 269470.

Almost surely, 2^421300432 is an apocalyptic number.

It is an amenable number.

421300432 is an abundant number, since it is smaller than the sum of its proper divisors (528239426).

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

421300432 is a wasteful number, since it uses less digits than its factorization.

421300432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537395 (or 537382 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 421300432 is about 20525.6043029188. The cubic root of 421300432 is about 749.6593605691.

Adding to 421300432 its reverse (234003124), we get a palindrome (655303556).

The spelling of 421300432 in words is "four hundred twenty-one million, three hundred thousand, four hundred thirty-two".