82630220 has 24 divisors (see below), whose sum is σ = 174679008. Its totient is φ = 32832000.

The previous prime is 82630201. The next prime is 82630231. The reversal of 82630220 is 2203628.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10661 + ... + 16700.

It is an arithmetic number, because the mean of its divisors is an integer number (7278292).

Almost surely, 2^82630220 is an apocalyptic number.

It is an amenable number.

82630220 is an abundant number, since it is smaller than the sum of its proper divisors (92048788).

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

82630220 is a wasteful number, since it uses less digits than its factorization.

82630220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27521 (or 27519 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 82630220 is about 9090.1166109132. The cubic root of 82630220 is about 435.5583089723.

Adding to 82630220 its reverse (2203628), we get a palindrome (84833848).

The spelling of 82630220 in words is "eighty-two million, six hundred thirty thousand, two hundred twenty".