82000390 has 16 divisors (see below), whose sum is σ = 155369520. Its totient is φ = 31073760.

The previous prime is 82000357. The next prime is 82000393. The reversal of 82000390 is 9300028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82000393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215601 + ... + 215980.

It is an arithmetic number, because the mean of its divisors is an integer number (9710595).

Almost surely, 2^82000390 is an apocalyptic number.

82000390 is a deficient number, since it is larger than the sum of its proper divisors (73369130).

82000390 is a wasteful number, since it uses less digits than its factorization.

82000390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431607.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 82000390 is about 9055.4066722594. The cubic root of 82000390 is about 434.4488373350.

The spelling of 82000390 in words is "eighty-two million, three hundred ninety", and thus it is an aban number.