421518476 has 12 divisors (see below), whose sum is σ = 744186072. Its totient is φ = 208893888.

The previous prime is 421518469. The next prime is 421518491. The reversal of 421518476 is 674815124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465830 + ... + 466733.

It is an arithmetic number, because the mean of its divisors is an integer number (62015506).

Almost surely, 2^421518476 is an apocalyptic number.

It is an amenable number.

421518476 is a deficient number, since it is larger than the sum of its proper divisors (322667596).

421518476 is a wasteful number, since it uses less digits than its factorization.

421518476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932680 (or 932678 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 421518476 is about 20530.9151281671. The cubic root of 421518476 is about 749.7886669752.

The spelling of 421518476 in words is "four hundred twenty-one million, five hundred eighteen thousand, four hundred seventy-six".