421488538 has 8 divisors (see below), whose sum is σ = 632585088. Its totient is φ = 210626844.

The previous prime is 421488517. The next prime is 421488541. The reversal of 421488538 is 835884124.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 421488494 and 421488503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54156 + ... + 61447.

It is an arithmetic number, because the mean of its divisors is an integer number (79073136).

Almost surely, 2^421488538 is an apocalyptic number.

421488538 is a deficient number, since it is larger than the sum of its proper divisors (211096550).

421488538 is a wasteful number, since it uses less digits than its factorization.

421488538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117428.

The product of its digits is 245760, while the sum is 43.

The square root of 421488538 is about 20530.1860196151. The cubic root of 421488538 is about 749.7709155157.

The spelling of 421488538 in words is "four hundred twenty-one million, four hundred eighty-eight thousand, five hundred thirty-eight".