82885240 has 16 divisors (see below), whose sum is σ = 186491880. Its totient is φ = 33154080.

The previous prime is 82885237. The next prime is 82885241. The reversal of 82885240 is 4258828.

It is a self number, because there is not a number n which added to its sum of digits gives 82885240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82885241) 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, 1036026 + ... + 1036105.

Almost surely, 2^82885240 is an apocalyptic number.

It is an amenable number.

82885240 is an abundant number, since it is smaller than the sum of its proper divisors (103606640).

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

82885240 is a wasteful number, since it uses less digits than its factorization.

82885240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072142 (or 2072138 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 82885240 is about 9104.1331273219. The cubic root of 82885240 is about 436.0059337632.

It can be divided in two parts, 828 and 85240, that added together give a palindrome (86068).

The spelling of 82885240 in words is "eighty-two million, eight hundred eighty-five thousand, two hundred forty".