40082840 has 128 divisors (see below), whose sum is σ = 109330560. Its totient is φ = 12939264.

The previous prime is 40082831. The next prime is 40082873. The reversal of 40082840 is 4828004.

40082840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549044 + ... + 549116.

It is an arithmetic number, because the mean of its divisors is an integer number (854145).

Almost surely, 2^40082840 is an apocalyptic number.

40082840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40082840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54665280).

40082840 is an abundant number, since it is smaller than the sum of its proper divisors (69247720).

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

40082840 is a wasteful number, since it uses less digits than its factorization.

40082840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 40082840 is about 6331.1010100930. The cubic root of 40082840 is about 342.2311172204.

The spelling of 40082840 in words is "forty million, eighty-two thousand, eight hundred forty".