421038280 has 64 divisors (see below), whose sum is σ = 1053158400. Its totient is φ = 150439680.

The previous prime is 421038227. The next prime is 421038313. The reversal of 421038280 is 82830124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3061 + ... + 29179.

It is an arithmetic number, because the mean of its divisors is an integer number (16455600).

Almost surely, 2^421038280 is an apocalyptic number.

421038280 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 421038280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526579200).

421038280 is an abundant number, since it is smaller than the sum of its proper divisors (632120120).

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

421038280 is a wasteful number, since it uses less digits than its factorization.

421038280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26174 (or 26170 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 421038280 is about 20519.2173340018. The cubic root of 421038280 is about 749.5038377624.

The spelling of 421038280 in words is "four hundred twenty-one million, thirty-eight thousand, two hundred eighty".