40729263 has 8 divisors (see below), whose sum is σ = 57500208. Its totient is φ = 25555584.

The previous prime is 40729261. The next prime is 40729289. The reversal of 40729263 is 36292704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40729263 - 2¹ = 40729261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40729261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399256 + ... + 399357.

It is an arithmetic number, because the mean of its divisors is an integer number (7187526).

Almost surely, 2^40729263 is an apocalyptic number.

40729263 is a deficient number, since it is larger than the sum of its proper divisors (16770945).

40729263 is a wasteful number, since it uses less digits than its factorization.

40729263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798633.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 40729263 is about 6381.9482135160. The cubic root of 40729263 is about 344.0610553923.

The spelling of 40729263 in words is "forty million, seven hundred twenty-nine thousand, two hundred sixty-three".