82276380 has 36 divisors (see below), whose sum is σ = 249572232. Its totient is φ = 21940320.

The previous prime is 82276357. The next prime is 82276409. The reversal of 82276380 is 8367228.

It is a happy number.

82276380 is a `hidden beast` number, since 8 + 2 + 276 + 380 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 228366 + ... + 228725.

It is an arithmetic number, because the mean of its divisors is an integer number (6932562).

Almost surely, 2^82276380 is an apocalyptic number.

It is an amenable number.

82276380 is an abundant number, since it is smaller than the sum of its proper divisors (167295852).

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

82276380 is a wasteful number, since it uses less digits than its factorization.

82276380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457106 (or 457101 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 82276380 is about 9070.6328334907. The cubic root of 82276380 is about 434.9357019511.

The spelling of 82276380 in words is "eighty-two million, two hundred seventy-six thousand, three hundred eighty".