421181469 has 48 divisors (see below), whose sum is σ = 645765120. Its totient is φ = 264176640.

The previous prime is 421181461. The next prime is 421181473. The reversal of 421181469 is 964181124.

It is not a de Polignac number, because 421181469 - 2³ = 421181461 is a prime.

It is a super-2 number, since 2×421181469² = 354787659657995922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421181461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2137879 + ... + 2138075.

It is an arithmetic number, because the mean of its divisors is an integer number (13453440).

Almost surely, 2^421181469 is an apocalyptic number.

It is an amenable number.

421181469 is a deficient number, since it is larger than the sum of its proper divisors (224583651).

421181469 is a wasteful number, since it uses less digits than its factorization.

421181469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 407 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 421181469 is about 20522.7061812033. The cubic root of 421181469 is about 749.5887932532.

The spelling of 421181469 in words is "four hundred twenty-one million, one hundred eighty-one thousand, four hundred sixty-nine".