82420620 has 24 divisors (see below), whose sum is σ = 230777904. Its totient is φ = 21978816.

The previous prime is 82420601. The next prime is 82420627. The reversal of 82420620 is 2602428.

It is not an unprimeable number, because it can be changed into a prime (82420627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686779 + ... + 686898.

It is an arithmetic number, because the mean of its divisors is an integer number (9615746).

Almost surely, 2^82420620 is an apocalyptic number.

It is an amenable number.

82420620 is an abundant number, since it is smaller than the sum of its proper divisors (148357284).

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

82420620 is a wasteful number, since it uses less digits than its factorization.

82420620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373689 (or 1373687 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 82420620 is about 9078.5802854852. The cubic root of 82420620 is about 435.1897177479.

The spelling of 82420620 in words is "eighty-two million, four hundred twenty thousand, six hundred twenty".