421206080 has 56 divisors (see below), whose sum is σ = 1017178560. Its totient is φ = 166100480.

The previous prime is 421206077. The next prime is 421206091. The reversal of 421206080 is 80602124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13451 + ... + 31989.

Almost surely, 2^421206080 is an apocalyptic number.

421206080 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 421206080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508589280).

421206080 is an abundant number, since it is smaller than the sum of its proper divisors (595972480).

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

421206080 is a wasteful number, since it uses less digits than its factorization.

421206080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18627 (or 18617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 421206080 is about 20523.3057766043. The cubic root of 421206080 is about 749.6033932707.

The spelling of 421206080 in words is "four hundred twenty-one million, two hundred six thousand, eighty".