420597220 has 24 divisors (see below), whose sum is σ = 885729600. Its totient is φ = 167767392.

The previous prime is 420597217. The next prime is 420597259. The reversal of 420597220 is 22795024.

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, 22110 + ... + 36469.

It is an arithmetic number, because the mean of its divisors is an integer number (36905400).

Almost surely, 2^420597220 is an apocalyptic number.

It is an amenable number.

420597220 is an abundant number, since it is smaller than the sum of its proper divisors (465132380).

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

420597220 is a wasteful number, since it uses less digits than its factorization.

420597220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58947 (or 58945 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 420597220 is about 20508.4670319359. The cubic root of 420597220 is about 749.2420312730.

The spelling of 420597220 in words is "four hundred twenty million, five hundred ninety-seven thousand, two hundred twenty".