82045930 has 16 divisors (see below), whose sum is σ = 152775720. Its totient is φ = 31686592.

The previous prime is 82045921. The next prime is 82045979. The reversal of 82045930 is 3954028.

It can be written as a sum of positive squares in 4 ways, for example, as 78552769 + 3493161 = 8863^2 + 1869^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82045892 and 82045901.

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, 141169 + ... + 141748.

Almost surely, 2^82045930 is an apocalyptic number.

82045930 is a deficient number, since it is larger than the sum of its proper divisors (70729790).

82045930 is a wasteful number, since it uses less digits than its factorization.

82045930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282953.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 82045930 is about 9057.9208431074. The cubic root of 82045930 is about 434.5292480851.

Adding to 82045930 its reverse (3954028), we get a palindrome (85999958).

The spelling of 82045930 in words is "eighty-two million, forty-five thousand, nine hundred thirty".