82650380 has 48 divisors (see below), whose sum is σ = 183617280. Its totient is φ = 31163328.

The previous prime is 82650367. The next prime is 82650497. The reversal of 82650380 is 8305628.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99527 + ... + 100353.

It is an arithmetic number, because the mean of its divisors is an integer number (3825360).

Almost surely, 2^82650380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82650380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91808640).

82650380 is an abundant number, since it is smaller than the sum of its proper divisors (100966900).

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

82650380 is a wasteful number, since it uses less digits than its factorization.

82650380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 82650380 is about 9091.2254399503. The cubic root of 82650380 is about 435.5937283846.

The spelling of 82650380 in words is "eighty-two million, six hundred fifty thousand, three hundred eighty".