82210390 has 16 divisors (see below), whose sum is σ = 148086432. Its totient is φ = 32860224.

The previous prime is 82210369. The next prime is 82210391. The reversal of 82210390 is 9301228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82210391) 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, 19447 + ... + 23293.

It is an arithmetic number, because the mean of its divisors is an integer number (9255402).

Almost surely, 2^82210390 is an apocalyptic number.

82210390 is a deficient number, since it is larger than the sum of its proper divisors (65876042).

82210390 is a wasteful number, since it uses less digits than its factorization.

82210390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 82210390 is about 9066.9945406402. The cubic root of 82210390 is about 434.8193903854.

The spelling of 82210390 in words is "eighty-two million, two hundred ten thousand, three hundred ninety".