82642210 has 32 divisors (see below), whose sum is σ = 178957440. Its totient is φ = 26842752.

The previous prime is 82642193. The next prime is 82642213. The reversal of 82642210 is 1224628.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (82642213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29739 + ... + 32398.

It is an arithmetic number, because the mean of its divisors is an integer number (5592420).

Almost surely, 2^82642210 is an apocalyptic number.

82642210 is an abundant number, since it is smaller than the sum of its proper divisors (96315230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82642210 is a wasteful number, since it uses less digits than its factorization.

82642210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62170.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 82642210 is about 9090.7760944817. The cubic root of 82642210 is about 435.5793750808.

Adding to 82642210 its reverse (1224628), we get a palindrome (83866838).

The spelling of 82642210 in words is "eighty-two million, six hundred forty-two thousand, two hundred ten".