421486464 has 128 divisors (see below), whose sum is σ = 1323878400. Its totient is φ = 116250624.

The previous prime is 421486453. The next prime is 421486469. The reversal of 421486464 is 464684124.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421486469) 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, 75249 + ... + 80655.

It is an arithmetic number, because the mean of its divisors is an integer number (10342800).

Almost surely, 2^421486464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421486464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661939200).

421486464 is an abundant number, since it is smaller than the sum of its proper divisors (902391936).

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

421486464 is a wasteful number, since it uses less digits than its factorization.

421486464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 5448 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The square root of 421486464 is about 20530.1355085640. The cubic root of 421486464 is about 749.7696857255.

The spelling of 421486464 in words is "four hundred twenty-one million, four hundred eighty-six thousand, four hundred sixty-four".