8280243520 has 56 divisors (see below), whose sum is σ = 19838420064. Its totient is φ = 3291757056.

The previous prime is 8280243493. The next prime is 8280243539. The reversal of 8280243520 is 253420828.

It is a happy number.

It is a super-3 number, since 3×8280243520³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27214 + ... + 131533.

Almost surely, 2^8280243520 is an apocalyptic number.

8280243520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8280243520 is an abundant number, since it is smaller than the sum of its proper divisors (11558176544).

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

8280243520 is a wasteful number, since it uses less digits than its factorization.

8280243520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158927 (or 158917 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 8280243520 is about 90995.8434215542. The cubic root of 8280243520 is about 2023.0861169211.

The spelling of 8280243520 in words is "eight billion, two hundred eighty million, two hundred forty-three thousand, five hundred twenty".