421052618 has 8 divisors (see below), whose sum is σ = 721804512. Its totient is φ = 180451116.

The previous prime is 421052587. The next prime is 421052627. The reversal of 421052618 is 816250124.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15037580 + ... + 15037607.

It is an arithmetic number, because the mean of its divisors is an integer number (90225564).

Almost surely, 2^421052618 is an apocalyptic number.

421052618 is a deficient number, since it is larger than the sum of its proper divisors (300751894).

421052618 is a wasteful number, since it uses less digits than its factorization.

421052618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30075196.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 421052618 is about 20519.5667108251. The cubic root of 421052618 is about 749.5123455114.

The spelling of 421052618 in words is "four hundred twenty-one million, fifty-two thousand, six hundred eighteen".