82040688 has 60 divisors (see below), whose sum is σ = 238114968. Its totient is φ = 27345600.

The previous prime is 82040677. The next prime is 82040711. The reversal of 82040688 is 88604028.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6663 + ... + 14438.

Almost surely, 2^82040688 is an apocalyptic number.

It is an amenable number.

82040688 is an abundant number, since it is smaller than the sum of its proper divisors (156074280).

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

82040688 is a wasteful number, since it uses less digits than its factorization.

82040688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21124 (or 21106 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 82040688 is about 9057.6314784827. The cubic root of 82040688 is about 434.5199937125.

It can be divided in two parts, 82040 and 688, that added together give a palindrome (82728).

The spelling of 82040688 in words is "eighty-two million, forty thousand, six hundred eighty-eight".