40007082 has 16 divisors (see below), whose sum is σ = 80164512. Its totient is φ = 13310640.

The previous prime is 40007063. The next prime is 40007083. The reversal of 40007082 is 28070004.

It is a happy number.

40007082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40007082² = 3201133220309448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40007083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2644 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (5010282).

Almost surely, 2^40007082 is an apocalyptic number.

40007082 is an abundant number, since it is smaller than the sum of its proper divisors (40157430).

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

40007082 is a wasteful number, since it uses less digits than its factorization.

40007082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12533.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 40007082 is about 6325.1151768169. The cubic root of 40007082 is about 342.0153715604.

Adding to 40007082 its reverse (28070004), we get a palindrome (68077086).

The spelling of 40007082 in words is "forty million, seven thousand, eighty-two".