421986180 has 192 divisors, whose sum is σ = 1483130880. Its totient is φ = 87091200.

The previous prime is 421986179. The next prime is 421986241. The reversal of 421986180 is 81689124.

421986180 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×421986180² = 356144672221984800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1113231 + ... + 1113609.

It is an arithmetic number, because the mean of its divisors is an integer number (7724640).

Almost surely, 2^421986180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421986180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741565440).

421986180 is an abundant number, since it is smaller than the sum of its proper divisors (1061144700).

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

421986180 is a wasteful number, since it uses less digits than its factorization.

421986180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 421986180 is about 20542.3022078831. The cubic root of 421986180 is about 750.0658786576.

The spelling of 421986180 in words is "four hundred twenty-one million, nine hundred eighty-six thousand, one hundred eighty".