8241661428 has 144 divisors (see below), whose sum is σ = 26281370304. Its totient is φ = 1976002560.

The previous prime is 8241661427. The next prime is 8241661433.

8241661428 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 8241661428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8241661423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35076 + ... + 133092.

It is an arithmetic number, because the mean of its divisors is an integer number (182509516).

Almost surely, 2^8241661428 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 8241661428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13140685152).

8241661428 is an abundant number, since it is smaller than the sum of its proper divisors (18039708876).

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

8241661428 is a wasteful number, since it uses less digits than its factorization.

8241661428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98062 (or 98053 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 8241661428 is about 90783.5966901510. The cubic root of 8241661428 is about 2019.9390096933.

The spelling of 8241661428 in words is "eight billion, two hundred forty-one million, six hundred sixty-one thousand, four hundred twenty-eight".