421506411 has 8 divisors (see below), whose sum is σ = 580137984. Its totient is φ = 271939560.

The previous prime is 421506409. The next prime is 421506439. The reversal of 421506411 is 114605124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421506411 - 2¹ = 421506409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421506311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2266071 + ... + 2266256.

It is an arithmetic number, because the mean of its divisors is an integer number (72517248).

Almost surely, 2^421506411 is an apocalyptic number.

421506411 is a deficient number, since it is larger than the sum of its proper divisors (158631573).

421506411 is a wasteful number, since it uses less digits than its factorization.

421506411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532361.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 421506411 is about 20530.6213008764. The cubic root of 421506411 is about 749.7815132465.

The spelling of 421506411 in words is "four hundred twenty-one million, five hundred six thousand, four hundred eleven".