421421475 has 24 divisors (see below), whose sum is σ = 720779760. Its totient is φ = 217006720.

The previous prime is 421421459. The next prime is 421421519. The reversal of 421421475 is 574124124.

It is not a de Polignac number, because 421421475 - 2⁴ = 421421459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94704 + ... + 99053.

It is an arithmetic number, because the mean of its divisors is an integer number (30032490).

Almost surely, 2^421421475 is an apocalyptic number.

421421475 is a deficient number, since it is larger than the sum of its proper divisors (299358285).

421421475 is a wasteful number, since it uses less digits than its factorization.

421421475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193799 (or 193794 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 421421475 is about 20528.5526766989. The cubic root of 421421475 is about 749.7311480808.

Adding to 421421475 its reverse (574124124), we get a palindrome (995545599).

The spelling of 421421475 in words is "four hundred twenty-one million, four hundred twenty-one thousand, four hundred seventy-five".