427221260 has 12 divisors (see below), whose sum is σ = 897164688. Its totient is φ = 170888496.

The previous prime is 427221259. The next prime is 427221313. The reversal of 427221260 is 62122724.

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, 10680512 + ... + 10680551.

It is an arithmetic number, because the mean of its divisors is an integer number (74763724).

Almost surely, 2^427221260 is an apocalyptic number.

It is an amenable number.

427221260 is an abundant number, since it is smaller than the sum of its proper divisors (469943428).

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

427221260 is a wasteful number, since it uses less digits than its factorization.

427221260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21361072 (or 21361070 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 427221260 is about 20669.3313873478. The cubic root of 427221260 is about 753.1548645722.

Adding to 427221260 its reverse (62122724), we get a palindrome (489343984).

The spelling of 427221260 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, two hundred sixty".