82443538 has 8 divisors (see below), whose sum is σ = 126681660. Its totient is φ = 40216320.

The previous prime is 82443533. The next prime is 82443547. The reversal of 82443538 is 83534428.

It can be written as a sum of positive squares in 2 ways, for example, as 69605649 + 12837889 = 8343^2 + 3583^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 82443497 and 82443506.

It is not an unprimeable number, because it can be changed into a prime (82443533) 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, 502623 + ... + 502786.

Almost surely, 2^82443538 is an apocalyptic number.

82443538 is a deficient number, since it is larger than the sum of its proper divisors (44238122).

82443538 is a wasteful number, since it uses less digits than its factorization.

82443538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005452.

The product of its digits is 92160, while the sum is 37.

The square root of 82443538 is about 9079.8423995133. The cubic root of 82443538 is about 435.2300505095.

The spelling of 82443538 in words is "eighty-two million, four hundred forty-three thousand, five hundred thirty-eight".