82082040 has 32 divisors (see below), whose sum is σ = 246246480. Its totient is φ = 21888512.

The previous prime is 82082023. The next prime is 82082051. The reversal of 82082040 is 4028028.

It is a super-2 number, since 2×82082040² = 13474922581123200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 82082040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341889 + ... + 342128.

Almost surely, 2^82082040 is an apocalyptic number.

It is an amenable number.

82082040 is an abundant number, since it is smaller than the sum of its proper divisors (164164440).

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

82082040 is a wasteful number, since it uses less digits than its factorization.

82082040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684031 (or 684027 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 82082040 is about 9059.9139068757. The cubic root of 82082040 is about 434.5929869761.

The spelling of 82082040 in words is "eighty-two million, eighty-two thousand, forty".