82005490 has 32 divisors (see below), whose sum is σ = 170605440. Its totient is φ = 27798144.

The previous prime is 82005461. The next prime is 82005493. The reversal of 82005490 is 9450028.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (82005493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352 + ... + 12811.

It is an arithmetic number, because the mean of its divisors is an integer number (5331420).

Almost surely, 2^82005490 is an apocalyptic number.

82005490 is an abundant number, since it is smaller than the sum of its proper divisors (88599950).

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

82005490 is a wasteful number, since it uses less digits than its factorization.

82005490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13266.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 82005490 is about 9055.6882676029. The cubic root of 82005490 is about 434.4578439716.

The spelling of 82005490 in words is "eighty-two million, five thousand, four hundred ninety".