421080813 has 24 divisors (see below), whose sum is σ = 621129600. Its totient is φ = 274790880.

The previous prime is 421080799. The next prime is 421080839. The reversal of 421080813 is 318080124.

It is not a de Polignac number, because 421080813 - 2⁴ = 421080797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421080883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300288 + ... + 301686.

It is an arithmetic number, because the mean of its divisors is an integer number (25880400).

Almost surely, 2^421080813 is an apocalyptic number.

It is an amenable number.

421080813 is a deficient number, since it is larger than the sum of its proper divisors (200048787).

421080813 is a wasteful number, since it uses less digits than its factorization.

421080813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 421080813 is about 20520.2537265015. The cubic root of 421080813 is about 749.5290750348.

The spelling of 421080813 in words is "four hundred twenty-one million, eighty thousand, eight hundred thirteen".