40340534 has 32 divisors (see below), whose sum is σ = 69242880. Its totient is φ = 17472672.

The previous prime is 40340513. The next prime is 40340543. The reversal of 40340534 is 43504304.

It is a happy number.

40340534 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 15 ways as a sum of consecutive naturals, for example, 62417 + ... + 63059.

It is an arithmetic number, because the mean of its divisors is an integer number (2163840).

Almost surely, 2^40340534 is an apocalyptic number.

40340534 is a deficient number, since it is larger than the sum of its proper divisors (28902346).

40340534 is a wasteful number, since it uses less digits than its factorization.

40340534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 40340534 is about 6351.4198412638. The cubic root of 40340534 is about 342.9629564440.

Adding to 40340534 its reverse (43504304), we get a palindrome (83844838).

The spelling of 40340534 in words is "forty million, three hundred forty thousand, five hundred thirty-four".