421330567 has 32 divisors (see below), whose sum is σ = 547776000. Its totient is φ = 321922944.

The previous prime is 421330541. The next prime is 421330571. The reversal of 421330567 is 765033124.

It is not a de Polignac number, because 421330567 - 2⁷ = 421330439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421330577) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 108888 + ... + 112690.

It is an arithmetic number, because the mean of its divisors is an integer number (17118000).

Almost surely, 2^421330567 is an apocalyptic number.

421330567 is a deficient number, since it is larger than the sum of its proper divisors (126445433).

421330567 is a wasteful number, since it uses less digits than its factorization.

421330567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860 (or 3846 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 421330567 is about 20526.3383729295. The cubic root of 421330567 is about 749.6772341532.

The spelling of 421330567 in words is "four hundred twenty-one million, three hundred thirty thousand, five hundred sixty-seven".