82428210 has 24 divisors (see below), whose sum is σ = 214313580. Its totient is φ = 21980832.

The previous prime is 82428187. The next prime is 82428211. The reversal of 82428210 is 1282428.

It can be written as a sum of positive squares in 2 ways, for example, as 77105961 + 5322249 = 8781^2 + 2307^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82428211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457845 + ... + 458024.

Almost surely, 2^82428210 is an apocalyptic number.

82428210 is an abundant number, since it is smaller than the sum of its proper divisors (131885370).

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

82428210 is a wasteful number, since it uses less digits than its factorization.

82428210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915882 (or 915879 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 82428210 is about 9078.9982927634. The cubic root of 82428210 is about 435.2030760093.

The spelling of 82428210 in words is "eighty-two million, four hundred twenty-eight thousand, two hundred ten".