421049776 has 80 divisors (see below), whose sum is σ = 985651200. Its totient is φ = 170337024.

The previous prime is 421049773. The next prime is 421049803. The reversal of 421049776 is 677940124.

It is not an unprimeable number, because it can be changed into a prime (421049771) 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 15 ways as a sum of consecutive naturals, for example, 202470 + ... + 204538.

It is an arithmetic number, because the mean of its divisors is an integer number (12320640).

Almost surely, 2^421049776 is an apocalyptic number.

421049776 is a gapful number since it is divisible by the number (46) 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 421049776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492825600).

421049776 is an abundant number, since it is smaller than the sum of its proper divisors (564601424).

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

421049776 is a wasteful number, since it uses less digits than its factorization.

421049776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 421049776 is about 20519.4974597333. The cubic root of 421049776 is about 749.5106591672.

The spelling of 421049776 in words is "four hundred twenty-one million, forty-nine thousand, seven hundred seventy-six".