424218756228 has 96 divisors (see below), whose sum is σ = 1068319010304. Its totient is φ = 130519154688.

The previous prime is 424218756151. The next prime is 424218756239. The reversal of 424218756228 is 822657812424.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28720101 + ... + 28734867.

It is an arithmetic number, because the mean of its divisors is an integer number (11128323024).

Almost surely, 2^424218756228 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 424218756228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534159505152).

424218756228 is an abundant number, since it is smaller than the sum of its proper divisors (644100254076).

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

424218756228 is a wasteful number, since it uses less digits than its factorization.

424218756228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17501 (or 17499 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 51.

The spelling of 424218756228 in words is "four hundred twenty-four billion, two hundred eighteen million, seven hundred fifty-six thousand, two hundred twenty-eight".