8650144428 has 48 divisors (see below), whose sum is σ = 21071667456. Its totient is φ = 2756649280.

The previous prime is 8650144423. The next prime is 8650144441. The reversal of 8650144428 is 8244410568.

It is a self number, because there is not a number n which added to its sum of digits gives 8650144428.

It is not an unprimeable number, because it can be changed into a prime (8650144423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650575 + ... + 663737.

It is an arithmetic number, because the mean of its divisors is an integer number (438993072).

Almost surely, 2^8650144428 is an apocalyptic number.

It is an amenable number.

8650144428 is an abundant number, since it is smaller than the sum of its proper divisors (12421523028).

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

8650144428 is a wasteful number, since it uses less digits than its factorization.

8650144428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15574 (or 15572 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 8650144428 is about 93006.1526351886. The cubic root of 8650144428 is about 2052.7739111616.

The spelling of 8650144428 in words is "eight billion, six hundred fifty million, one hundred forty-four thousand, four hundred twenty-eight".