82390430 has 16 divisors (see below), whose sum is σ = 149387760. Its totient is φ = 32715072.

The previous prime is 82390423. The next prime is 82390433. The reversal of 82390430 is 3409328.

It is a junction number, because it is equal to n+sod(n) for n = 82390393 and 82390402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82390433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28700 + ... + 31439.

It is an arithmetic number, because the mean of its divisors is an integer number (9336735).

Almost surely, 2^82390430 is an apocalyptic number.

82390430 is a deficient number, since it is larger than the sum of its proper divisors (66997330).

82390430 is a wasteful number, since it uses less digits than its factorization.

82390430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60283.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 82390430 is about 9076.9174282903. The cubic root of 82390430 is about 435.1365757790.

Adding to 82390430 its reverse (3409328), we get a palindrome (85799758).

The spelling of 82390430 in words is "eighty-two million, three hundred ninety thousand, four hundred thirty".