421486920 has 96 divisors (see below), whose sum is σ = 1379851200. Its totient is φ = 111574656.

The previous prime is 421486909. The next prime is 421486927. The reversal of 421486920 is 29684124.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (421486927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45829 + ... + 54251.

It is an arithmetic number, because the mean of its divisors is an integer number (14373450).

Almost surely, 2^421486920 is an apocalyptic number.

421486920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421486920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689925600).

421486920 is an abundant number, since it is smaller than the sum of its proper divisors (958364280).

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

421486920 is a wasteful number, since it uses less digits than its factorization.

421486920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579 (or 8572 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 421486920 is about 20530.1466141867. The cubic root of 421486920 is about 749.7699561136.

The spelling of 421486920 in words is "four hundred twenty-one million, four hundred eighty-six thousand, nine hundred twenty".