82440523 has 12 divisors (see below), whose sum is σ = 91527768. Its totient is φ = 73641440.

The previous prime is 82440521. The next prime is 82440539. The reversal of 82440523 is 32504428.

It is not a de Polignac number, because 82440523 - 2¹ = 82440521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82440491 and 82440500.

It is not an unprimeable number, because it can be changed into a prime (82440521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37215 + ... + 39367.

It is an arithmetic number, because the mean of its divisors is an integer number (7627314).

Almost surely, 2^82440523 is an apocalyptic number.

82440523 is a deficient number, since it is larger than the sum of its proper divisors (9087245).

82440523 is a wasteful number, since it uses less digits than its factorization.

82440523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282 (or 2223 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 82440523 is about 9079.6763708846. The cubic root of 82440523 is about 435.2247449205.

It can be divided in two parts, 824405 and 23, that added together give a palindrome (824428).

The spelling of 82440523 in words is "eighty-two million, four hundred forty thousand, five hundred twenty-three".