40031082 has 48 divisors (see below), whose sum is σ = 106753920. Its totient is φ = 10557216.

The previous prime is 40031071. The next prime is 40031113. The reversal of 40031082 is 28013004.

It is a happy number.

40031082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 10582 + ... + 13857.

It is an arithmetic number, because the mean of its divisors is an integer number (2224040).

Almost surely, 2^40031082 is an apocalyptic number.

40031082 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40031082 is an abundant number, since it is smaller than the sum of its proper divisors (66722838).

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

40031082 is a wasteful number, since it uses less digits than its factorization.

40031082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24467 (or 24464 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 40031082 is about 6327.0120910269. The cubic root of 40031082 is about 342.0837488549.

Adding to 40031082 its reverse (28013004), we get a palindrome (68044086).

The spelling of 40031082 in words is "forty million, thirty-one thousand, eighty-two".