82402650 has 192 divisors, whose sum is σ = 257126400. Its totient is φ = 19224000.

The previous prime is 82402637. The next prime is 82402657. The reversal of 82402650 is 5620428.

82402650 is a `hidden beast` number, since 8 + 2 + 4 + 0 + 2 + 650 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (82402657) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 460261 + ... + 460439.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 2^82402650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82402650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128563200).

82402650 is an abundant number, since it is smaller than the sum of its proper divisors (174723750).

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

82402650 is a wasteful number, since it uses less digits than its factorization.

82402650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 82402650 is about 9077.5905393447. The cubic root of 82402650 is about 435.1580876063.

The spelling of 82402650 in words is "eighty-two million, four hundred two thousand, six hundred fifty".