421045332 has 24 divisors (see below), whose sum is σ = 984555936. Its totient is φ = 140046048.

The previous prime is 421045327. The next prime is 421045333. The reversal of 421045332 is 233540124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421045333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31963 + ... + 43170.

It is an arithmetic number, because the mean of its divisors is an integer number (41023164).

Almost surely, 2^421045332 is an apocalyptic number.

It is an amenable number.

421045332 is an abundant number, since it is smaller than the sum of its proper divisors (563510604).

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

421045332 is a wasteful number, since it uses less digits than its factorization.

421045332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75607 (or 75605 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 421045332 is about 20519.3891721952. The cubic root of 421045332 is about 749.5080222366.

Adding to 421045332 its reverse (233540124), we get a palindrome (654585456).

The spelling of 421045332 in words is "four hundred twenty-one million, forty-five thousand, three hundred thirty-two".