421613418 has 8 divisors (see below), whose sum is σ = 843226848. Its totient is φ = 140537804.

The previous prime is 421613411. The next prime is 421613419. The reversal of 421613418 is 814316124.

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

421613418 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421613411) 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, 35134446 + ... + 35134457.

It is an arithmetic number, because the mean of its divisors is an integer number (105403356).

Almost surely, 2^421613418 is an apocalyptic number.

421613418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421613418 is a wasteful number, since it uses less digits than its factorization.

421613418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70268908.

The product of its digits is 4608, while the sum is 30.

The square root of 421613418 is about 20533.2271696390. The cubic root of 421613418 is about 749.8449563953.

The spelling of 421613418 in words is "four hundred twenty-one million, six hundred thirteen thousand, four hundred eighteen".