82219128 has 16 divisors (see below), whose sum is σ = 205547880. Its totient is φ = 27406368.

The previous prime is 82219127. The next prime is 82219133. The reversal of 82219128 is 82191228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82219127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712875 + ... + 1712922.

Almost surely, 2^82219128 is an apocalyptic number.

It is an amenable number.

82219128 is an abundant number, since it is smaller than the sum of its proper divisors (123328752).

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

82219128 is a wasteful number, since it uses less digits than its factorization.

82219128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425806 (or 3425802 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 82219128 is about 9067.4763854118. The cubic root of 82219128 is about 434.8347952396.

The spelling of 82219128 in words is "eighty-two million, two hundred nineteen thousand, one hundred twenty-eight".