428010720260 has 48 divisors (see below), whose sum is σ = 922278096432. Its totient is φ = 166750464000.

The previous prime is 428010720259. The next prime is 428010720367. The reversal of 428010720260 is 62027010824.

It can be written as a sum of positive squares in 8 ways, for example, as 4136805124 + 423873915136 = 64318^2 + 651056^2 .

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, 58574 + ... + 927066.

It is an arithmetic number, because the mean of its divisors is an integer number (19214127009).

Almost surely, 2^428010720260 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 428010720260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461139048216).

428010720260 is an abundant number, since it is smaller than the sum of its proper divisors (494267376172).

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

428010720260 is a wasteful number, since it uses less digits than its factorization.

428010720260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869144 (or 869142 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 428010720260 in words is "four hundred twenty-eight billion, ten million, seven hundred twenty thousand, two hundred sixty".