420217260 has 48 divisors (see below), whose sum is σ = 1183854336. Its totient is φ = 111367872.

The previous prime is 420217249. The next prime is 420217277. The reversal of 420217260 is 62712024.

It is a self number, because there is not a number n which added to its sum of digits gives 420217260.

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, 11704 + ... + 31263.

It is an arithmetic number, because the mean of its divisors is an integer number (24663632).

Almost surely, 2^420217260 is an apocalyptic number.

It is an amenable number.

420217260 is an abundant number, since it is smaller than the sum of its proper divisors (763637076).

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

420217260 is a wasteful number, since it uses less digits than its factorization.

420217260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43142 (or 43140 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 420217260 is about 20499.2014478613. The cubic root of 420217260 is about 749.0163460194.

Adding to 420217260 its reverse (62712024), we get a palindrome (482929284).

The spelling of 420217260 in words is "four hundred twenty million, two hundred seventeen thousand, two hundred sixty".