421504086 has 32 divisors (see below), whose sum is σ = 921397248. Its totient is φ = 127969920.

The previous prime is 421504081. The next prime is 421504093. The reversal of 421504086 is 680405124.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421504081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63490 + ... + 69813.

It is an arithmetic number, because the mean of its divisors is an integer number (28793664).

Almost surely, 2^421504086 is an apocalyptic number.

421504086 is an abundant number, since it is smaller than the sum of its proper divisors (499893162).

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

421504086 is a wasteful number, since it uses less digits than its factorization.

421504086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133356.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 421504086 is about 20530.5646780599. The cubic root of 421504086 is about 749.7801346631.

The spelling of 421504086 in words is "four hundred twenty-one million, five hundred four thousand, eighty-six".