421516874 has 8 divisors (see below), whose sum is σ = 646979520. Its totient is φ = 205857036.

The previous prime is 421516873. The next prime is 421516877. The reversal of 421516874 is 478615124.

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

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 3 ways as a sum of consecutive naturals, for example, 2450594 + ... + 2450765.

It is an arithmetic number, because the mean of its divisors is an integer number (80872440).

Almost surely, 2^421516874 is an apocalyptic number.

421516874 is a deficient number, since it is larger than the sum of its proper divisors (225462646).

421516874 is a wasteful number, since it uses less digits than its factorization.

421516874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901404.

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

The square root of 421516874 is about 20530.8761137950. The cubic root of 421516874 is about 749.7877171055.

The spelling of 421516874 in words is "four hundred twenty-one million, five hundred sixteen thousand, eight hundred seventy-four".