82530418 has 8 divisors (see below), whose sum is σ = 123849180. Its totient is φ = 41247360.

The previous prime is 82530391. The next prime is 82530419. The reversal of 82530418 is 81403528.

It can be written as a sum of positive squares in 2 ways, for example, as 80874049 + 1656369 = 8993^2 + 1287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×82530418² = 13622539790509448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82530418.

It is not an unprimeable number, because it can be changed into a prime (82530419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2103 + ... + 13018.

Almost surely, 2^82530418 is an apocalyptic number.

82530418 is a deficient number, since it is larger than the sum of its proper divisors (41318762).

82530418 is a wasteful number, since it uses less digits than its factorization.

82530418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17852.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 82530418 is about 9084.6253637671. The cubic root of 82530418 is about 435.3828804056.

The spelling of 82530418 in words is "eighty-two million, five hundred thirty thousand, four hundred eighteen".