420707180 has 12 divisors (see below), whose sum is σ = 883485120. Its totient is φ = 168282864.

The previous prime is 420707171. The next prime is 420707197. The reversal of 420707180 is 81707024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10517660 + ... + 10517699.

It is an arithmetic number, because the mean of its divisors is an integer number (73623760).

Almost surely, 2^420707180 is an apocalyptic number.

It is an amenable number.

420707180 is an abundant number, since it is smaller than the sum of its proper divisors (462777940).

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

420707180 is a wasteful number, since it uses less digits than its factorization.

420707180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21035368 (or 21035366 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 420707180 is about 20511.1477007017. The cubic root of 420707180 is about 749.3073189728.

The spelling of 420707180 in words is "four hundred twenty million, seven hundred seven thousand, one hundred eighty".