82403560 has 16 divisors (see below), whose sum is σ = 185408100. Its totient is φ = 32961408.

The previous prime is 82403527. The next prime is 82403561. The reversal of 82403560 is 6530428.

It can be written as a sum of positive squares in 2 ways, for example, as 69255684 + 13147876 = 8322^2 + 3626^2 .

It is not an unprimeable number, because it can be changed into a prime (82403561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030005 + ... + 1030084.

Almost surely, 2^82403560 is an apocalyptic number.

It is an amenable number.

82403560 is an abundant number, since it is smaller than the sum of its proper divisors (103004540).

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

82403560 is a wasteful number, since it uses less digits than its factorization.

82403560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060100 (or 2060096 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 82403560 is about 9077.6406626392. The cubic root of 82403560 is about 435.1596894658.

Adding to 82403560 its reverse (6530428), we get a palindrome (88933988).

The spelling of 82403560 in words is "eighty-two million, four hundred three thousand, five hundred sixty".