421234465 has 16 divisors (see below), whose sum is σ = 537264000. Its totient is φ = 316144512.

The previous prime is 421234447. The next prime is 421234481. The reversal of 421234465 is 564432124.

It is a cyclic number.

It is not a de Polignac number, because 421234465 - 2⁵ = 421234433 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11740 + ... + 31309.

It is an arithmetic number, because the mean of its divisors is an integer number (33579000).

Almost surely, 2^421234465 is an apocalyptic number.

It is an amenable number.

421234465 is a deficient number, since it is larger than the sum of its proper divisors (116029535).

421234465 is a wasteful number, since it uses less digits than its factorization.

421234465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43176.

The product of its digits is 23040, while the sum is 31.

The square root of 421234465 is about 20523.9972958486. The cubic root of 421234465 is about 749.6202314373.

Adding to 421234465 its reverse (564432124), we get a palindrome (985666589).

The spelling of 421234465 in words is "four hundred twenty-one million, two hundred thirty-four thousand, four hundred sixty-five".