421516876 has 24 divisors (see below), whose sum is σ = 826466256. Its totient is φ = 186419520.

The previous prime is 421516873. The next prime is 421516877. The reversal of 421516876 is 678615124.

It is not an unprimeable number, because it can be changed into a prime (421516871) 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, 127831 + ... + 131086.

It is an arithmetic number, because the mean of its divisors is an integer number (34436094).

Almost surely, 2^421516876 is an apocalyptic number.

It is an amenable number.

421516876 is a deficient number, since it is larger than the sum of its proper divisors (404949380).

421516876 is a wasteful number, since it uses less digits than its factorization.

421516876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258969 (or 258967 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 421516876 is about 20530.8761625022. The cubic root of 421516876 is about 749.7877182913.

The spelling of 421516876 in words is "four hundred twenty-one million, five hundred sixteen thousand, eight hundred seventy-six".