421330552 has 16 divisors (see below), whose sum is σ = 792523440. Its totient is φ = 209990976.

The previous prime is 421330541. The next prime is 421330571. The reversal of 421330552 is 255033124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81628 + ... + 86635.

It is an arithmetic number, because the mean of its divisors is an integer number (49532715).

Almost surely, 2^421330552 is an apocalyptic number.

It is an amenable number.

421330552 is a deficient number, since it is larger than the sum of its proper divisors (371192888).

421330552 is a wasteful number, since it uses less digits than its factorization.

421330552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168582 (or 168578 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 421330552 is about 20526.3380075453. The cubic root of 421330552 is about 749.6772252567.

Adding to 421330552 its reverse (255033124), we get a palindrome (676363676).

The spelling of 421330552 in words is "four hundred twenty-one million, three hundred thirty thousand, five hundred fifty-two".