82275640 has 16 divisors (see below), whose sum is σ = 185120280. Its totient is φ = 32910240.

The previous prime is 82275607. The next prime is 82275647. The reversal of 82275640 is 4657228.

It is a junction number, because it is equal to n+sod(n) for n = 82275596 and 82275605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82275647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028406 + ... + 1028485.

Almost surely, 2^82275640 is an apocalyptic number.

It is an amenable number.

82275640 is an abundant number, since it is smaller than the sum of its proper divisors (102844640).

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

82275640 is a wasteful number, since it uses less digits than its factorization.

82275640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056902 (or 2056898 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 82275640 is about 9070.5920424193. The cubic root of 82275640 is about 434.9343979990.

The spelling of 82275640 in words is "eighty-two million, two hundred seventy-five thousand, six hundred forty".