40340235 has 64 divisors (see below), whose sum is σ = 75575808. Its totient is φ = 18192384.

The previous prime is 40340221. The next prime is 40340239. The reversal of 40340235 is 53204304.

It is a happy number.

40340235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40340235 - 2⁴ = 40340219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40340239) 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 63 ways as a sum of consecutive naturals, for example, 142404 + ... + 142686.

It is an arithmetic number, because the mean of its divisors is an integer number (1180872).

Almost surely, 2^40340235 is an apocalyptic number.

40340235 is a deficient number, since it is larger than the sum of its proper divisors (35235573).

40340235 is a wasteful number, since it uses less digits than its factorization.

40340235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40340235 is about 6351.3963031762. The cubic root of 40340235 is about 342.9621091062.

Adding to 40340235 its reverse (53204304), we get a palindrome (93544539).

The spelling of 40340235 in words is "forty million, three hundred forty thousand, two hundred thirty-five".