40834140 has 24 divisors (see below), whose sum is σ = 114335760. Its totient is φ = 10889088.

The previous prime is 40834127. The next prime is 40834147. The reversal of 40834140 is 4143804.

40834140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40834140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40834147) 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, 340225 + ... + 340344.

It is an arithmetic number, because the mean of its divisors is an integer number (4763990).

Almost surely, 2^40834140 is an apocalyptic number.

It is an amenable number.

40834140 is an abundant number, since it is smaller than the sum of its proper divisors (73501620).

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

40834140 is a wasteful number, since it uses less digits than its factorization.

40834140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680581 (or 680579 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 40834140 is about 6390.1596224195. The cubic root of 40834140 is about 344.3561189491.

Adding to 40834140 its reverse (4143804), we get a palindrome (44977944).

The spelling of 40834140 in words is "forty million, eight hundred thirty-four thousand, one hundred forty".