421480511 has 4 divisors (see below), whose sum is σ = 421562400. Its totient is φ = 421398624.

The previous prime is 421480471. The next prime is 421480517. The reversal of 421480511 is 115084124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421480511 is a prime.

It is a super-2 number, since 2×421480511² = 355291642305642242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421480517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32666 + ... + 43703.

It is an arithmetic number, because the mean of its divisors is an integer number (105390600).

Almost surely, 2^421480511 is an apocalyptic number.

421480511 is a deficient number, since it is larger than the sum of its proper divisors (81889).

421480511 is an equidigital number, since it uses as much as digits as its factorization.

421480511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81888.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 421480511 is about 20529.9905260572. The cubic root of 421480511 is about 749.7661558375.

The spelling of 421480511 in words is "four hundred twenty-one million, four hundred eighty thousand, five hundred eleven".