421487880 has 128 divisors (see below), whose sum is σ = 1439493120. Its totient is φ = 97729280.

The previous prime is 421487863. The next prime is 421487921. The reversal of 421487880 is 88784124.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23419 + ... + 37301.

It is an arithmetic number, because the mean of its divisors is an integer number (11246040).

Almost surely, 2^421487880 is an apocalyptic number.

421487880 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 421487880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719746560).

421487880 is an abundant number, since it is smaller than the sum of its proper divisors (1018005240).

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

421487880 is a wasteful number, since it uses less digits than its factorization.

421487880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931 (or 13927 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 42.

The square root of 421487880 is about 20530.1699944253. The cubic root of 421487880 is about 749.7705253512.

The spelling of 421487880 in words is "four hundred twenty-one million, four hundred eighty-seven thousand, eight hundred eighty".