40689935 has 16 divisors (see below), whose sum is σ = 57365280. Its totient is φ = 27315840.

The previous prime is 40689907. The next prime is 40689937. The reversal of 40689935 is 53998604.

40689935 = T₃₈₄ + T₃₈₅ + ... + T₆₆₉.

40689935 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 40689935 - 2¹² = 40685839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40689937) 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 15 ways as a sum of consecutive naturals, for example, 27740 + ... + 29169.

It is an arithmetic number, because the mean of its divisors is an integer number (3585330).

Almost surely, 2^40689935 is an apocalyptic number.

40689935 is a deficient number, since it is larger than the sum of its proper divisors (16675345).

40689935 is a wasteful number, since it uses less digits than its factorization.

40689935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56938.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 40689935 is about 6378.8662785796. The cubic root of 40689935 is about 343.9502784410.

The spelling of 40689935 in words is "forty million, six hundred eighty-nine thousand, nine hundred thirty-five".